Sinusitis and acute and chronic rhinitis, atrophic rhinitis, allergic rhinitis and other rhinitis, the main difference is the onset of a different location, in addition to the clinical manifestations are also different, but rhinitis and sinusitis often occur simultaneously. 1. Location: the former occurs in the sinuses (maxillary sinus, frontal sinus, pterygoid sinus, sieve sinus) and the nasal cavity, the scope is larger. The latter occurs in the mucous membrane of the nasal cavity, the scope is smaller. 2. Clinical manifestations: The former manifests as persistent nasal congestion on the affected side or both sides, with mucus nasal discharge, often accompanied by severe headache and loss of smell. The latter flow watery or white mucous nasal discharge, nasal congestion symptoms are milder, only a slight sense of smell loss, basically no headache phenomenon. If rhinitis is not treated in time, it may develop into sinusitis. When the nose appears uncomfortable symptoms should be timely medical treatment, cooperate with the doctor examination, symptomatic treatment, to avoid the development of the disease, delay treatment.