Scalp pain on the left side of the head may be caused by local inflammation or boils, and the scalp should be examined. If there is inflammation or boils, anti-inflammatory treatment should be given promptly, and erythromycin ointment can be applied topically, and if necessary, the patient can be seen by a surgeon. It may also be caused by the wind blowing and stimulating the scalp, so the patient should avoid getting cold and pay attention to keeping warm. If the patient has intracranial organic lesions, the above symptoms may also occur, and if necessary, cranial CT or MRI should be examined to clarify. It may also be caused by other pathologies, such as hypertension. Patients with hypertension may have the above symptoms, and their blood pressure should be monitored, and if it is elevated, they should be given blood pressure-lowering treatment in a timely manner, with the main drugs being levamlodipine and amlodipine besylate, and also valsartan and irbesartan. In addition, patients with pain may also be caused by neuralgia. Patients with neuralgia usually present with episodic scalp pain, which is mainly treated with symptomatic pain relief, and can be treated with oral ibuprofen, naproxen, and also apply carbamazepine if necessary.