The weather turned cold the other day, and I began to itch in the middle of my chest again. I always want to cough, and I have to cough hard to cough up some yellow phlegm. Not much. I have no cold sy

The weather turned cold the other day, and I began to itch in the middle of my chest again. I always want to cough, and I have to cough hard to cough up some yellow phlegm. Not much. I have no cold symptoms, boss. There are several situations:

1. Your bronchi are usually sensitive. Recently, the climate is changeable, which leads to the increase of tracheal sensitivity.

Recently, the body's resistance has decreased, and pneumonia has appeared. Generally, mycoplasma infection is the most common type of phlegm cough, and roxithromycin should be used.

3, it may be general bronchitis, mainly treated with cephalosporins, but it may also be combined with the second situation.

4, usually allergic reactions, often coughing for no reason, may be a manifestation of asthma.

5, there are stomach diseases, then some gastroesophageal stomach diseases can cause cough.

6, there are some unusual, such as eosinophilic pneumonia. Only the specific hospital examination can know.

7. There are some unknown reasons. When everything is all right with you, you still don't know what's wrong.

Above, can be used as a differential diagnosis of cough, all by hand, I think it is based on your symptoms.