Hello, doctor. Please help me see what causes my symptoms. Thank you. "Male, 24 years old, Changzhou, Jiangsu Province. My back waist is prone to itching and swelling when the temperature is low. For example, in late autumn, winter or spring, and every time after dinner, after about 6:00 p.m., I itch for an hour and a half or an hour. The more I scratch, the more I itch. When the symptoms appear, the degree of itching is not particularly severe, but I always want to scratch twice. If I can resist it, it's about half an hour." If I catch it, the symptoms will continue. The symptoms of redness and swelling only occur when the scratch is serious. The symptoms do not occur every day. If I go out for a walk or do other things after dinner, it will be all right. Maybe the symptoms appear but I don't feel them. About 3-4 years "
This situation is considered to be urticaria. It is recommended that you take oral antihistamines, Loratadine Tablets and levocetirizine hydrochloride tablets to alleviate symptoms. At ordinary times, you should also pay attention to underwear, change and wash frequently, disinfect at high temperature and expose to the sun to avoid inducing factors. Or go to the hospital for allergen testing.
According to your picture, this may consider a case of dry skin and urticaria. It is recommended that you go to the dermatology department for treatment. Generally, in autumn and winter, it is recommended to apply moisturizer to keep the skin moist, which can be alleviated. At the same time, the bath water temperature should not be too high