Terbinafine hydrochloride is an antifungal drug with no significant therapeutic effect on pityriasis rosea. Furfury is an inflammatory skin disease with rose-colored oval or ring-shaped patches covered with furfuraceous scales, the cause of which is unknown and self-limiting. Terbinafine hydrochloride belongs to the antifungal drugs, mainly used for tinea pedis, tinea corporis, tinea pedis and other fungal infections caused by the disease, there is no therapeutic effect on pityriasis rosea. When pityriasis rosea causes severe itching, antihistamines such as ebastine and loratadine can be used. Glucocorticosteroids such as prednisone and methylprednisolone can be used in severe cases. The most common adverse reactions caused by terbinafine hydrochloride are gastrointestinal discomfort, skin rashes, etc. It is contraindicated for those who are allergic to the drug. There are individual differences in the specific treatment of drugs, it is recommended to consult a doctor, the doctor’s guidance on the use of medication.