Allergy is an abnormal reaction of our body’s immune system to certain substance (allergen). There are different types of allergic diseases of the skin:
- Atopic eczema (atopic dermatitis)
- Contact dermatitis
- Urticaria (hives) and angioedema
- Contact urticaria
- Papular urticaria (insect bite reaction)
- Drug allergy
- Photodermatitis
- Cutaneous vasculitis
- Erythroderma
CC Chang Skin Specialist 