Can sleeping on a mat cause a big rash on the front side of the thigh? It still itches!

1. The mat was not cleaned, and there were mites on it. It is recommended to brush it thoroughly with hot water, then dry it, and then wipe it with a clean towel dipped in water as toilet water. It will be fine after drying;

2. urticaria attack. Sometimes it happens when the weather is hot, the humidity in the body is heavy, and the diet is not careful. It is recommended to see a doctor, or go to a drugstore to buy a bottle of calamine lotion and rub it on the rash. Take some vitamin C before you decide whether to see a doctor.