If you don’t blow-dry your hair for a headache, you can dry your hair with a dry towel, pay attention to the warmth of your head, and take anti-inflammatory and analgesic drugs such as indomethacin. This often happens in the cold weather season. This is because the cold induces spasms in the blood vessels of the scalp and spasms in the cap fascia below the scalp, which further stimulates the sensory nerves and leads to painful sensations. Enhancing head warmth can relieve this symptom, which usually improves spontaneously after tens of minutes. Headache caused by hair not blow-drying, first of all, blow-dry or dry hair, pay attention to the warmth of the head, you can wear a hat. You can also massage your head. If the above methods are ineffective or the headache is obvious, you can use anti-inflammatory and analgesic drugs such as indomethacin and ibuprofen. If the headache persists, be alert to the possibility of other diseases such as cerebral hemorrhage, and need to go to the hospital in time.