Patients who have allergic rhinitis in their life can be treated with Keratan. The main component of Keratan is loratadine, which can effectively reduce the symptoms of nasal congestion and runny nose for about a week. If the patient’s condition still does not improve after half a month or so of medication, it is necessary to go to the hospital for further examination to avoid delaying the patient’s condition. When you get to the hospital, you need to check the nasal endoscopy and, if necessary, improve the nasal CT to be able to observe the patient’s condition comprehensively, and then further treat the symptoms after a clear diagnosis. In life, you must exercise more to enhance your resistance to avoid rhinitis.