Dr. Jeff HershDaily News CorrespondentQ: My skin has always been sensitive, but lately it is worse, and now I develop mosquito bite-like hives wherever I scratch or rub. Urticaria is a rash of round(ish), swollen-looking, red, often itchy lesions that develop due to an allergy. In dermatographia, it is mechanical pressure (things such as scratching, rubbing, and/or other mechanical pressure) that causes the urticaria. These lesions develop over the area that had the mechanical pressure applied to it. The lesions of dermatographia typically develop 5 to 15 minutes after the abrasive mechanical stimuli, and usually resolve over 30 to 60 minutes.

Source: MetroXpress August 31, 2021 08:26 UTC