There are many types of rhinitis, and patients with rhinitis are afraid of heat for the following reasons: 1. Patients with vasomotor rhinitis are prone to nasal runny nose, sneezing and other related manifestations once they come into contact with hot things, such as when eating hot food or drinking hot soup, mainly because the stimulation of hot temperature induces parasympathetic excitation in the nasal cavity, resulting in such manifestations. 2. The nasal cavity is dry and even uncomfortable due to burning and pain in the nasal cavity. 3. Patients with acute rhinitis can suffer from heat stroke, which is caused by high temperature, hot and humid weather and climate. Some patients with rhinitis are afraid of cold and some are afraid of heat.