Skin Rash

Skin Rash 皮疹

Rash Causes

A rash is a noticeable change in the color and texture of the skin. The skin may become bumpy, chapped, itchy, scaly, or otherwise irritated. Rashes are caused by a wide range of conditions, including allergies, cosmetics, medication and various diseases etc.

Contact dermatitis 皮膚炎 is a common cause of rashes which occur when touching something that causes a reaction. Most contact rashes can be treated without the assistance of medical practitioner. A rash may be itchy, but scratching can make it even worse preventing it from healing.

1) Contact dermatitis – caused by contact with:

beauty products, soaps, and laundry detergent
dyes in clothing
chemicals in rubber, elastic, or latex
poisonous plants such as poison oak, poison ivy, or poison sumac 毒漆樹

2) Drug rashes are caused by medication, such as:

an allergic reaction
a side effect
a result of sensitivity to sunlight

3) Other types of rashes include:

eczema 濕疹: a common rash for people with asthma or allergies. The rash is often reddish and itchy, with a scaly texture.
bug bites: tick bites are of particular concern, as they can transmit disease
psoriasis 牛皮癬: a scaly, itchy, red rash that forms along the scalp and joints
dandruff 頭皮: an itchy, flaky rash on the scalp. On an infant, dandruff is called cradle cap.
seborrheic dermatitis 脂溢性皮炎: dandruff that occurs on the ears, mouth, nose, or somewhere besides the scalp

Dermatitis (eczema)
皮膚炎