The skin can react to various allergens, including foods, medications and environmental factors. Hives may not always look red on darker skin. Instead, they might appear as raised, slightly darker ...

Hives might not cause any discoloration on darker skin, so be alert for raised patches or welts—those could be a sign of urticaria. If you have shortness of breath, throat tightening ...

Dermatographism is a form of pressure urticaria in which hives will form along the lines of trauma wherever the skin is scratched, rubbed, or roughly stroked. The term "dermatographism" literally ...

A rash is an area of skin that may be inflamed ... or purple. People with darker skin might develop rashes that are white, gray, or darker than the surrounding skin. Most rashes are mild and ...