Zellar is also called ketoconazole lotion, and the main active ingredient is ketoconazole. Ketoconazole is an antifungal drug, which is a broad-spectrum antifungal drug, and has certain inhibitory or fungicidal effects on dermatophytes, such as Trichophyton spp., Epidermophyton spp., Microsporum spp. and yeast, and also can quickly relieve the flaking and itching caused by pityriasis vulgaris, seborrheic dermatitis and scalp pityriasis. In the clinical Celebrex or ketoconazole lotion is mainly used for scalp pityriasis, localized pityriasis vulgaris, seborrheic dermatitis, which can improve the related symptoms of patients. When using this drug, it should be noted that if the symptoms do not improve significantly after 2-4 weeks of use or if the symptoms worsen, the drug should be discontinued and the doctor or pharmacist should be consulted. In conclusion, Celebrex ketoconazole lotion mainly has a certain antibacterial effect, can improve the patient’s scalp pityriasis, pityriasis vulgaris and other related symptoms.