Urticaria is a localized edema reaction caused by the expansion and permeability increase of small blood vessels in skin and mucosa, which usually subsides within 2 ~ 24 hours, but new rashes appear repeatedly. The course of the disease is delayed for several days to several months. It is more common in clinic.
There are many factors leading to urticaria, which can be roughly divided into two categories: (external causes) and (internal causes).
If you say that you went to the gym and sat on the mat, the reason for your allergy may be the mat problem.
It is suggested to use antihistamines to relieve itching and inflammation. In normal times, we should also pay more attention to what factors may cause our skin allergies and try to avoid them.
I wish you a speedy recovery. .