Dizziness, dizziness and runny nose may be caused by upper respiratory tract infection, allergic rhinitis and sinusitis and other diseases. 1. Upper respiratory tract infection: broadly speaking, upper respiratory tract infection is a general term for acute inflammation of the nasopharynx and throat, and narrowly speaking, upper respiratory tract infection refers to colds and flu, which are mostly caused by viral infections, with a small portion of them caused by bacterial infections. Common clinical manifestations include coughing and coughing up phlegm, fever, dizziness, runny nose, sore throat, hoarseness and other symptoms. 2. Allergic rhinitis: an inflammatory disease of the nasal mucosa caused by allergy. The course of the disease can last for several months, often recurring. The main symptoms are nasal itching, nasal congestion, runny nose, and dizziness and headache caused by nasal congestion. 3. Sinusitis: acute and chronic sinusitis patients can be due to the inflammatory reaction of dizziness, blurred vision and runny nose and other symptoms. If the symptoms of dizziness, blurred vision and runny nose have lasted for a period of time, you should go to the hospital in time for examination and standardized diagnosis and treatment.