Is it normal for a lot of little red dot to suddenly appear on the arm or do you have some diseases?

What is the specific reason for the sudden appearance of many little red dot on the arm? According to different situations, it may be allergies, lack of certain vitamins, or it may be related to the weather and environment, or it may be a disease. It depends on specific symptoms and cannot be generalized. In fact, in summer, many of us accidentally develop some little red dot, such as being allergic to the sun or being bitten by insects. Symptoms are different, some are itchy, and some are painless. Next, I will tell you about the different symptoms caused by different causes of little red dot's skin and the treatment methods.

Allergy cause

In most cases, the sudden appearance of little red dot on the skin is due to allergies. Everyone has different allergens, so the situation is different. Usually, skin problems caused by allergies are itchy, and they are accompanied by itchy symptoms all over the body. Some are red spots, and some may stand out as soon as they are caught, like urticaria. At this time, we'd better consider what we have touched or eaten that will make us allergic. Some people are allergic to pollen, while others are allergic to certain foods. If you don't know, go to the hospital to check the allergens, which will help you avoid allergens in the future. Allergies generally need to take anti-allergic drugs, and at the same time add more vitamin C and fruits, so don't worry too much. It will be all right after a while.

Lack of vitamins

There is also a lack of vitamins and some trace elements in the body, which can also lead to little red dot on the skin, but this kind of little red dot is generally anodyne. It may happen to people with malnutrition such as weight loss or picky eaters, so when eating, we must pay attention to diversity in all aspects, don't be too picky eaters, and don't recommend dieting to lose weight. Doing more exercise is better and healthier. If the skin problem is caused by vitamin deficiency, you can supplement some multivitamins, especially B group, which is very beneficial to the skin. When the nutrition is balanced, the skin problem will be solved naturally.

Henoch-Schonlein purpura

There is also a kind of skin little red dot caused by allergic purpura, mainly because there are bleeding spots under the skin, so little red dot appears on the skin, usually on the thigh. The symptoms are not painful, but they can subside when you press them, and turn red when you let go. The causes may be related to virus, inflammation, drugs and food, but don't worry too much. Red dots generally disappear over time. If they are not serious and are not accompanied by other symptoms, you can leave them alone. However, if it is serious, accompanied by fever, headache and other general malaise, it is recommended to go to the hospital for examination.

Mosquito bite

In addition, there is a common mosquito bite, especially when we go out to play or walk in summer, we may be accidentally bitten by insects. Generally, this kind of situation will be accompanied by itching and other symptoms, of course, some of them are just little red dot. This is relatively simple. Just apply some antipruritic lotion, such as wind oil. When going out to play, it is best to wear long trousers or apply mosquito repellent to avoid being bitten.

The above has introduced several reasons for the appearance of red spots on the skin. If you don't think about it, you might as well go to the hospital for examination.