Left side headache and eye pain should be examined by cranial nuclear magnetism to exclude intracranial organic lesions, such as brain tumors may cause, including benign tumors and malignant tumors. Benign tumors are mainly treated by surgical resection, and may be clinically cured after surgical resection. Malignant tumors should be treated by surgery, and radiotherapy or chemotherapy should be considered at the same time. If there are lesions in the eye itself, such as glaucoma can also appear, at the same time there may be increased intraocular pressure, if necessary, should go to the ophthalmology department to find a specialist for diagnosis and treatment. If there is primary neuralgia, such as trigeminal neuralgia, the main symptomatic treatment can be oral carbamazepine, phenytoin sodium and oxcarbazepine, and in severe cases, radiofrequency ablation or localized nerve sealing treatment can also be carried out.