This year, outpatient clinic found more than 10 cases of patients, mostly children, facial erythema, papules with itching to the clinic, the duration of the disease ranging from 3 months to 8 months, outpatient in accordance with the dermatitis use of dermatitis ping, skin lightening ointment, euthyrox, etc., the symptoms of a time to alleviate, but recurrent episodes, long-lasting cure. When he came to my clinic, there were no obvious clinical features of dermatophyte infection, and the border was not clear, because the use of hormonal topical drugs masked the primary rash, making the diagnosis difficult. However, the fungal examination showed positive. It was cured according to the fungal treatment. Because children are active, do not pay attention to hygiene, hands often with bacteria, touching everywhere, so the exposed parts are very easy to be infected, and many non-specialized dermatologists may seldom think of fungal infections and follow the treatment of dermatitis, masking the primary rash, resulting in prolonged condition. Like the child in the picture below, it has been repeated for 6 months, and the fungal microscopy is positive, and it is cured after 1 month of topical application of Biliang. So if the child’s face according to the dermatitis treatment is still recurring, long lasting rash, in addition to a detailed history, it is recommended to routinely check the fungus, to exclude difficult to recognize ringworm. To avoid misdiagnosis and mistreatment.