Vitamin AD drops are one of the more commonly used drugs in rhinology. Vitamin AD can promote mucosal growth, moisturize and nourish the nasal mucosa, and patients with dry nose can use topical vitamin AD drops with better effect; patients whose nasal mucosa does not heal repeatedly can use topical vitamin AD drops for their nose. Patients with nasal bleeding can also apply vitamin AD drops as an adjuvant drug treatment, such as patients with nasal bleeding after microwave, laser or bipolar electrocoagulation treatment, can apply vitamin AD drops can play a role in promoting the early healing of the wound. Pay attention to the problem of medication time, generally at least half a month of drops twice a day, drops after lying for ten minutes and then get up can play a better therapeutic effect.