From little red dot.

It may be urticaria, commonly known as "rash". It is a localized edema reaction caused by various allergic factors such as drugs, food, pollen, infection and so on, which causes the expansion and permeability increase of small blood vessels in skin and mucosa. Skin lesions are irregular in shape, which usually subside within 24 hours, or recur and persist.

Treatment is mainly to remove allergens, supplemented by antihistamines, and severe cases can be treated with corticosteroids.

prescription

1. Pay attention to medication history, diet, infection, mental factors and inhalants (pollen, feathers, paint, etc. ) before the onset, and try to avoid those that may be related to the onset.

2. Take medicine on time, and don't stop taking medicine by yourself. Taking antihistamines has a sedative effect, and it is not suitable for mountaineering and driving after taking them.

3. Patients with shortness of breath, laryngeal edema or dysphagia should seek medical attention immediately.

Chronic urticaria is a very stubborn skin disease, which often recurs. There is no specific medicine at present. The principle of treatment is: oral anti-allergic drugs, such as chlorpheniramine, chlorpheniramine, xiantemin, etc. Oral vitamin c and various vitamins. In severe cases, hormone, vein and muscle are used, and oral administration depends on the condition. It can also be treated with traditional Chinese medicine.

A commonly used Chinese medicine prescription for your reference: 9 grams of zedoary, 3 grams of dry paint, 9 grams of safflower, 9 grams of peach kernel, 3 grams of ephedra, 9 grams of cassia twig, 9 grams of forsythia, 9 grams of mulberry bark and 6 grams of raw grass. Decoct with water, one pair a day. I suggest you go to the hospital for Chinese medicine treatment.

Urticaria is a localized edema reaction caused by the expansion and permeability increase of small blood vessels in skin and mucosa, commonly known as "rash". It is characterized by white or red rash on the skin, sudden onset, no certain position, sometimes hidden and sometimes present, excessive itching, and no trace after fading.

Treatment:

The disease should be mainly treated with drugs, combined with emotional, diet, acupuncture and other therapies. Severe cases, especially those with anaphylactic shock or laryngeal edema, must be sent to hospital immediately for treatment.

Prevention:

The cause of urticaria is allergic reaction, which is caused by many factors, such as drugs, food, clothes, pollen, cosmetics and so on. Treatment should start with blocking allergens and anti-allergic treatment. Try to find out the cause and remove it. For example, be careful not to inhale pollen, animal dander, feathers, dust, castor powder, etc., avoid contact with allergens, and ban or fast some drugs or foods that are allergic to the body. If the patient relapses due to cold and hot stimulation, don't avoid it too much. On the contrary, he has to gradually contact and extend the time of hot and cold stimulation to adapt. Actively treat primary diseases, such as acute tonsillitis, cholecystitis, viral hepatitis, appendicitis, intestinal ascariasis, etc. To eliminate the source of the disease. Maintain a cheerful spirit and a good mood at ordinary times. At the same time, we should also pay attention to the temperature change, increase or decrease clothes with the temperature change, and strengthen physical exercise.

However, it is difficult for most patients to find a clear source of allergies. The treatment is oral anti-allergic drugs, which can be combined with calcium, vitamin C and corticosteroids.

Chronic urticaria is sometimes difficult to treat, and it is necessary to adjust the immune function of the body, such as taking two antihistamines for a long time (3-6 months), namely chlorpheniramine, cyproheptadine, xizan and Mindy, as well as cimetidine, ranitidine and famotidine. Need to adjust the medication time, in order to prevent the attack at night, you can take the medicine in the afternoon. In addition, in order to strengthen the curative effect, thymosin, histamine globulin or BCG polysaccharide nucleic acid needle can be injected. With the development of the body, the immune function of some patients will change, and chronic urticaria will relieve itself.

urticaria

Commonly known as rash, it is a temporary erythema and edema reaction of skin and mucosa caused by vasodilation and plasma extravasation, which is more common in clinic.

Etiology There are many reasons for urticaria, and the common ones are as follows:

1. Drug 2. Infection 3. Food 4. Environmental factors. Manifestations of systemic diseases. hereditary factor

Clinical manifestations are often acute, with sudden itching of the skin, followed by wheal, bright red or pale skin, and edema and erythema; Wind masses vary in size and shape, some of which can reach more than 65,438+00 cm in diameter. Sometimes air bubbles can appear on the surface of the air mass, which are arranged in a scattered way and can merge with each other to form irregular shapes such as rings and topographic maps. Wind masses often spread all over the body, or they can be limited. They can fade after a few hours, usually no more than 24 hours, leaving no trace after fading. However, new wind masses occur one after another, one after another, sometimes many times a day. There is severe itching, burning or tingling, and very few patients have itching. Severe cases may be accompanied by symptoms of anaphylactic shock such as palpitation, irritability, nausea, vomiting, and even decreased blood pressure. Nausea, vomiting, diarrhea and abdominal pain may occur when the digestive tract is involved; Involvement of larynx and bronchus can lead to laryngeal edema, suffocation, shortness of breath, chest tightness, dyspnea and even suffocation. If accompanied by high fever, chills, rapid pulse, leukocytosis and other systemic symptoms, it should be considered that it is caused by acute infection factors.

According to the different course of disease, it can be divided into acute and chronic, and those who can recover in a short time (a few days to 1~2 weeks) are called acute urticaria; If it recurs for months (1~2 months) or even years, it is called chronic urticaria. Chronic patients generally have mild systemic symptoms and frequent wheezing, some of which are timely, such as aggravation in the morning or before going to bed, and some of which are irregular.

In addition, there are some special types of urticaria in clinic. For example:

1. Peptone urticaria: (Acute Peptone Allergic Urticaria) Under normal circumstances, peptone decomposed by food protein is not or rarely inhaled into the blood, which is easy to digest. However, when eating too much (gluttony of pork and seafood), being excited and drinking a lot, peptone can be absorbed into the blood through the intestinal mucosa and cause diseases, resulting in skin congestion, redness, wheal, headache and fatigue. The course of the disease is very short, lasting only 1~2 days, and most of them can disappear within 1~4 hours. It belongs to antigen-antibody reaction, and its pathogenic medium is histamine.

2. Cold urticaria: It is a disease in which urticaria (wheal or vascular edema and erythema) occurs locally after the skin is stimulated by cold. This disease can be divided into two types: familial or hereditary and acquired.

(1) Acquired cold urticaria: It is the most common physical urticaria, which can break out at any age. After skin contact with cold air, cold water, etc. Itchy edema and wheal appear locally within a few minutes, which can last for 30~60 minutes and be relieved after heat preservation. Adhesion test was positive.

(2) Hereditary cold urticaria: It is dominant inheritance, which is more common in women. Infantile onset, lasting for life. A few hours after a cold, the whole body wind mass appears, which has a burning feeling and does not itch, and can last for 48 hours. At the same time, it is accompanied by chills, fever, headache, joint pain and increased cells. The ice viscosity test was negative.

3. Cholinergic urticaria: mostly occurs in young people, and occurs after encountering heat (hot drinks and hot baths), emotional excitement and exercise. The rash is characterized by a small wind mass of 1~3 mm, with redness around it, mostly at the proximal end of trunk and limbs, fatigue and itching. Some patients have digestive tract symptoms, such as abdominal pain and diarrhea.

4. Solar urticaria: The main manifestations are itching, erythema, wheal and vascular edema after skin exposure in the sun for several seconds to several minutes, lasting for 1~2 hours. Most of them are women.

5. Compressive urticaria: The skin appears after being severely and persistently compressed for 4-6 hours, and diffuse edematous pain patches with unclear boundaries appear at the compressed parts, involving the skin and skin tissues. It usually occurs in palms, soles and buttocks, and generally lasts for 8~ 12 hours. Sometimes it is accompanied by chills, headaches, joint pains and general malaise. The pathogenesis is related to kinin.

6. Serum urticaria: caused by drugs (penicillin, furazolidone, etc.). ), vaccine or allogeneic blood. Wind masses, especially polycyclic wind masses, are the most common skin lesions, and toxic erythema and erythema nodosum can also be seen. Patients also have symptoms of serum sickness or serum sickness-like reactions, such as fever, joint pain and lymphadenopathy. It can still damage the heart and kidneys. This is an antigen-antibody complex reaction.

7. Skin scratch: also known as artificial urticaria. After scratching or scratching the skin with a blunt instrument, a strip-shaped bulge appears along the scratch, accompanied by itching, which quickly disappears. Can occur alone or accompanied by urticaria. Can occur at any age. The disease often has no obvious cause, or it may be caused by drugs (especially penicillin). It is also considered to be related to some abnormal functions of skin mast cells.

treat cordially

Finding out the cause and removing the pathogenic factors is the way to cure the problem. But the cause of urticaria, especially chronic urticaria, is often difficult to find, so symptomatic treatment is often used in most cases. People who can't get rid of the disease should reduce various triggering factors, especially physical urticaria. At the same time, we should pay attention to avoid various factors that aggravate skin vasodilation. Can give

1. antihistamines: mainly H 1 receptor antagonists and H2 receptor antagonists. Various antihistamines have different antihistamines and other pharmacological effects. For example, cyproheptadine is effective for cold urticaria, and Antaile is effective for hot urticaria. For intractable urticaria, H 1 and H2 receptor antagonists can be combined to improve the curative effect.

2. Adrenal cortical hormone: used in acute severe or intractable cases, such as anaphylactic shock, serous urticaria, stress urticaria, etc. Hydrocortisone 100~200MG is added into 5% glucose solution for intravenous drip, or 30~40MG of prednisone is taken orally. This therapy is generally not suitable for long-term application.

3. Antibiotics: Those who are infected can choose appropriate antibiotics, especially urticaria caused by obvious or concealed gastrointestinal infections.

4. Drugs that reduce vascular wall permeability: such as vitamin C, vitamin P, calcium, etc. Often used with antihistamines.

5. Sympathomimetic drugs: mainly used for severe acute urticaria's disease, especially when there is anaphylactic shock or laryngeal edema. Subcutaneous injection of 0. 1% epinephrine 0.5~ 1 ml. In severe cases, it can be injected again every 20 to 30 minutes.

6. Histamine globulin: It is a drug that promotes the production of antihistamine antibodies in the body, and has a good effect on chronic urticaria, especially mechanical and cold urticaria. 2~4 ml intramuscular injection each time, 65438+ 0~2 times a week, 6~8 times as a course of treatment.

7. Others: oral vitamin K, vitamin E, vitamin B 12, aminophylline, reserpine, chloroquine, intravenous aprotinin, 6- aminohexyl, sodium thiosulfate, heart and tissue therapy, autologous blood therapy, etc.

8. Local treatment: drugs that can relieve itching can be used externally.

Itching all over when you are excited or exercising: urticaria 20065438+0030514: 01Sina Life.

Q: My skin is dry. Sometimes, when I feel excited or exercise, when I bask in the sun on a hot day (that is, when I feel that I am about to sweat), I suddenly feel hot and itchy all over, especially my scalp. Their thighs often look like youth bean; There is also the quilt is too hot to sleep at night, which will itch all over and affect sleep. What is the reason? How to treat it?

A: From your description, it may be a kind of urticaria-cholinergic urticaria. This disease often occurs when the weather is hot and cold, emotional tension, strenuous exercise and drinking hot drinks. There are many small red papules on the skin surface that are consistent with hair follicles, just like goose bumps. The itching is severe and usually disappears after a few hours. In severe cases, symptoms such as abdominal pain may occur.

This disease is treatable. Polymalone is an effective antihistamine for this disease, and other antihistamines also have certain curative effects. I suggest you go to the hospital as soon as possible.

If the disease is diagnosed, avoid the inducing factors first, or take medicine in advance before the inducing factors appear. Under the guidance of a doctor, it can be cured after a certain course of treatment.

Consultation:

Hello, doctor! I am a patient in Wuhan. Four years ago, I got chronic urticaria. After a year of treatment, I was cured. Recently began to relapse. I wonder what medicine can cure this disease. I hope to get your sincere help, thank you very much!

Hello, Professor Wu Yanfang, Director of Dermatology, Affiliated Hospital of Qingdao University School of Medicine. Your letter has been received. Urticaria is a stubborn skin disease with recurrent attacks. The general treatment of urticaria is antiallergic therapy, oral administration, intramuscular injection and intravenous injection. In severe cases, hormone and vitamin C can be given intravenously, while in mild cases, chlorpheniramine, phentermine, chlorpheniramine and other drugs can be taken orally with various vitamins. As long as you persist in treatment, you can still be cured.

Antiallergic drugs have no obvious side effects, don't worry. In addition, you should pay attention to find the cause of your allergy, which is difficult for doctors to find for you. If you can find the allergen, you can stop the rash in the future without touching it. In addition, you can also see Chinese medicine, maybe there are some ways.

In May this year, he suffered from acute urticaria and was treated in a local hospital. After several days of treatment, my condition has not improved, mainly because eating fish, eating spicy food or catching cold will cause plaques on my knees and elbows, like a bag that has just been bitten by mosquitoes. Even if it turns pale red, it has not been cured after being seen in other hospitals.

Hello, Professor Wu Yanfang, Director of Dermatology, Affiliated Hospital of Qingdao University School of Medicine. Your letter has been received. Sometimes urticaria can be stubborn and repeated. The general treatment of urticaria is antiallergic therapy, oral administration, intramuscular injection and intravenous injection. In severe cases, hormone and vitamin C can be given intravenously, while in mild cases, chlorpheniramine, phentermine, chlorpheniramine and other drugs can be taken orally with various vitamins. As long as you persist in treatment, you can still be cured. Antiallergic drugs have no obvious side effects, don't worry. You may be allergic to fish, spicy food and cold air. Avoid touching these things. As long as we can do this, we can control the outbreak of urticaria.

There will be swelling marks when the skin is slightly scratched: artificial urticaria 20065438+0 February17 June 15:06 Sina Life

Q: The whole body is sensitive to skin. If you scratch your skin intentionally or unintentionally, you will get swollen marks. When the seasons change every few months, and within a few days after bathing, wearing non-cotton clothes will itch all over.

Eating Terfenadine has an effect, but it can't be cured. It's no use taking Chinese medicine to supplement zinc. It lasted for ten years and was very painful. Please advise.

Dr. Wu replied: your skin bulges after scratching, which is called artificial urticaria. It is a local urticaria after the skin is stimulated by pressure. Treatment should first relieve the itching of the skin, and in addition, get rid of the habit of scratching when the skin itches.

Treatment with antihistamines can only be cured after continuous treatment for a certain period of time. You can choose and use anti-allergic drugs without difficulty according to your work nature and economic conditions. You can take anti-allergic drugs that are not sleepy, such as sitamin and kairuitan, one tablet during the day, and one tablet that is sleepy before going to bed at night, such as chlorpheniramine, antongding and dechlorination. These drugs make you sleepy.

Anti-allergic drug treatment starts with sufficient amount, and lasts for 2 weeks without rash, then it is reduced, and the drug is changed to one tablet every other day during the day, and gradually reduced to once a week, and then the drug can be stopped. The whole course of treatment is 3-6 months. If it is repeatedly stated that the reduction is too early after reduction, the initial therapeutic dose should be restored, and the order of 1-2 weeks should be maintained before reduction. If you stop taking medicine as soon as you get better, you will definitely relapse.