Always running nose and sneezing may be caused by acute rhinitis, allergic rhinitis, vasomotor rhinitis and other diseases. 1. Acute rhinitis: patients with low resistance may suffer from recurrent viral infections leading to frequent acute rhinitis, which causes running nose and sneezing, and may be accompanied by symptoms such as nasal congestion, dizziness, and physical weakness. 2. Allergic rhinitis: if contact with pollen, dust, animal hair and other allergens, allergic rhinitis is easily induced, causing patients to run a clear nose and sneeze all the time, and there may also be symptoms of nasal itching. 3. Vasomotor rhinitis: patients with autonomic dysfunction can experience symptoms of running nose and sneezing after hot and cold stimulation, exercise and diet. Patients who always sneeze and runny nose are recommended to go to the hospital to improve the examination to clarify the cause of the disease.