Thigh long red plaque is common in ringworm, tinea versicolor, eczema and so on.
1. ringworm: this disease is mainly caused by fungal infections such as Trichophyton rubrum, Trichophyton mustelii, flocculent epidermidis, etc., which is manifested as red papules, small blisters or herpes papules, erythema and other symptoms.
2. Danovirus: this disease is mainly caused by type B hemolytic streptococcus infection, bacteria can be invaded through the skin or mucous membrane damage, resulting in Danovirus, manifested as a well-demarcated edematous erythema, rapidly expanding to the surrounding area, accompanied by headache, chills, fever and other symptoms.
3. Eczema: the cause of this disease is unknown, may be related to certain foods, inhalants, pathogenic microorganisms, chemical substances, physical factors, endocrine factors and other factors, manifested as erythema, papules, papules and other symptoms on the skin, accompanied by itching.
It is recommended that patients go to a regular hospital in a timely manner, after a clear diagnosis, follow the doctor’s instructions and timely treatment, so as not to delay the condition.