The symptoms of headache after washing hair, if accompanied by sneezing and runny nose, may be related to not paying attention to keep warm after washing hair, catching cold and catching flu. You can take cold medicine such as compound aminophenalkylamine capsule, Lianhua Qingfei capsule, etc. You can take ibuprofen capsule and other drugs for pain. Headache after washing hair may be related to high water temperature, resulting in vascular tension headache, migraine and so on. You can do local massage to help relieve the symptoms as soon as possible, avoid excessive excitement and tension, you can also take drugs such as flunarizine hydrochloride. If your blood pressure exceeds 150/100 mmHg, you can take nifedipine or telmisartan. Cerebrovascular diseases can also cause headaches, so you should go to the hospital for examination and treatment of the cause.