What causes a red rash on the chin?

A red rash on the chin can be caused by eczema, contact dermatitis, or insect bite dermatitis.
1. Eczema: it is an inflammatory skin disease caused by a variety of factors. The main symptoms of the disease are skin rashes, erythematous papules, blisters and other symptoms, with obvious itching and flaking.
2. Contact dermatitis: usually associated with contact with external factors, stimulated by external factors, will lead to skin erythema, rash, blisters or blisters, severe liquid exudation, mostly accompanied by itching symptoms.
3. Insect bite dermatitis: for example, by mosquitoes, scabies and mites after the bite of the allergic reaction, in the clinic is also known as papular urticaria. The main manifestation is edematous erythema of the skin, accompanied by varying degrees of itching.
Rash on the chin, there may be prickly heat, solar dermatitis and other factors, it is recommended to consult a doctor in time to find out the cause, and follow the doctor’s instructions to standardize the treatment.