Headache and sore throat may be caused by acute pharyngitis, acute tonsillitis and other infectious diseases. It is recommended to go to the hospital as soon as possible and follow the doctor’s instructions for treatment. 1. Acute pharyngitis: acute and chronic inflammation of the pharyngeal mucosa, submucosa and lymphatic tissues, which can be divided into acute simple pharyngitis, acute necrotizing pharyngitis, acute edematous pharyngitis, etc., which manifests as dryness, pain and even difficulty in swallowing. If the systemic symptoms are more serious, fever and headache may appear. 2. Acute tonsillitis: acute non-specific inflammation of the tonsils, often secondary to respiratory tract infections, acute onset and rapid progression of the disease, with sore throat as the main clinical manifestation, but also due to fever caused by headache and other symptoms. 3. 3. Acute inflammatory diseases of the larynx: acute inflammatory diseases confined to the laryngeal mucosa and submucosal tissues, such as acute laryngitis and acute epiglottitis. It is often associated with a sore throat, difficulty swallowing, etc. It can also be accompanied by systemic symptoms such as fever, headache, and fatigue. Headache and sore throat may also be a combination of throat diseases with other diseases that have headache symptoms, such as high blood pressure and migraine. If the above symptoms occur, you should go to the hospital for examination and treatment in time to avoid aggravation of the condition.