What to do if you have ringworm on your arms

Arm ringworm, may be ringworm, psoriasis, neurodermatitis and other causes, need to choose targeted treatment according to the cause.
1. Ringworm: caused by dermatophytes through direct or indirect contact infection, its treatment is based on local topical antifungal drugs, such as ketoconazole, terbinafine, clotrimazole ointment, etc., if the lesion area is large, oral medication, such as itraconazole and other drugs for treatment.
2. Psoriasis: it can be related by environment, heredity, immunity and other factors, and its typical performance is scaly erythema or plaque. For mild or moderate psoriasis, topical glucocorticosteroids, such as halometasone cream, etc.; if the symptoms are severe, it can be treated with oral retinoic acid drugs, such as Avicenna, etc., as well as immunosuppressants, such as methotrexate.
3. Neurodermatitis: the cause of the disease is unknown, with mental, dietary and other factors, the typical performance of the skin moss-like changes, there may be scales, accompanied by paroxysmal itching. The cause should be removed as much as possible, avoid scratching, eat a light diet, and reduce mental stress. Topical glucocorticosteroids, such as mometasone furoate ointment, can be used, and if the symptoms are serious, oral anti-allergy drugs, such as loratadine, can be used for treatment.
There may be other reasons for ringworm on the arm, it is recommended to go to the hospital in time, to clarify the cause, and standardize the treatment under the guidance of the doctor. The medication should be used in accordance with the doctor’s instructions, do not use your own medicine.