Can hair color and gabapentin cause headaches?

Yes, hair color and gabapentin can both cause headaches. Hair color can cause headaches due to the chemicals used, such as ammonia, which can irritate the scalp and cause inflammation. Gabapentin, a medication used to treat nerve pain, can also cause headaches as a side effect. If you are experiencing headaches after using hair color or taking gabapentin, you should consult a doctor to determine the cause and receive appropriate treatment.