Runny nose in summer eating is mainly considered to be related to vasomotor rhinitis and dietary stimulation. 1. Vasomotor rhinitis: this disease has a close relationship with temperature changes, summer weather is hot, the steam stimulation in the meal, can cause acute attacks, runny nose and other uncomfortable symptoms. 2. Dietary stimulation: some people in the consumption of stimulating food, can stimulate the nasal mucosa, resulting in increased mucosal secretions, the symptoms of a runny nose. 3. Other diseases: a runny nose in summer may be related to colds, allergic rhinitis, nasal polyps and other diseases. It is recommended to consult a doctor as soon as possible to confirm the diagnosis of such symptoms, and according to the results of the examination, take the corresponding way of treatment.