Frontal sinusitis is not serious. Frontal sinusitis is a type of sinusitis, which is a symptom associated with non-specific inflammatory infection of the sinus mucosa, usually secondary to an upper respiratory tract infection, often with congestion, edema, and inflammatory exudation of the sinus mucosa. Patients often present with symptoms related to headache, nasal congestion, yellow nasal discharge, decreased sense of smell, and fever. Because it is an inflammatory infection, it needs to be treated with oral anti-inflammatory drugs in the acute stage, usually cefixime, penicillin V potassium tablets, amoxicillin or roxithromycin. If necessary, it is necessary to cooperate with nebulization inhalation to reduce the mucous membrane edema of the sinuses, so that the sinus opening can be opened and nasal secretions can be discharged. In case of recurrent sinusitis, surgical treatment may be required. After surgery, one should exercise to improve immunity and resistance and avoid colds to be completely cured.