The causes of left sideburn pain include trauma, tension headache, migraine, high blood pressure, etc., and need to be treated for the cause. 1. Trauma: when the left sideburns are damaged by external force, the phenomenon of left sideburns pain can occur, and local redness, swelling and damage can also occur. At this time, you can give oral ibuprofen and other pain treatment, local anti-inflammatory bandages and other treatments. 2. Tension headache: pericranial muscle or myofascial contraction or ischemia, inflammatory mediator release and other triggers. There are also factors such as depression and anxiety. Tension headache is also easily induced when you don’t get a good rest. You can give naproxen, ibuprofen and other drugs to relieve pain. 3. Migraine: It is a chronic vascular neurological disease, manifested as throbbing pain on one side or both sides. It can be treated with analgesic drugs such as sumatriptan and zolmitriptan. 4. Hypertension: when blood pressure rises after intracranial vasodilatation, there may also be sideburn pain. Captopril and valsartan can be used for treatment. The left sideburn pain is caused by many factors, it is recommended that patients seek timely medical attention, clear reasons, reasonable treatment, strictly comply with the medical prescription medication.