A small rash on the skin is considered to be caused by contact dermatitis, eczema and ringworm.
1. Contact dermatitis: mainly related to skin contact with exogenous substances allergic or irritating substances. The main symptoms are skin erythema, edema and pinpoint-sized dense papules, often accompanied by itching symptoms, lesions mainly occur in the contact area.
2. Eczema: the cause of the disease is not clear, may be related to abnormal immune function, genetic factors and infectious factors, clinical manifestations of corn size papules, papules, blisters, etc., vesicles and oozing. The rash can be distributed in all parts of the body.
3. Ringworm: the cause of the disease is mainly related to the skin ringworm infection, often wear airtight clothes, sweaty people are also easy to induce ringworm, lesions manifested as red papules, papules, etc., and the formation of red patches with dandruff, from the center of the spread to the surrounding area, part of the patient will appear a small rash of the skin.
There are many reasons for a small skin rash, and it is recommended that the patient seek medical examination to clarify the cause of the disease.