Patient's question:
My son suddenly lost a patch of hair at the back of his head last month, but the area where the hair fell out is still growing new hair. The bald spot is slightly red, but it doesn't itch or hurt.Doctor's answer:
Your condition may be alopecia areata, commonly known as "," which is a sudden, localized patchy hair loss disorder. The affected scalp area appears normal without inflammation or any subjective symptoms. The course of this disease is slow, and it can resolve on its own and recur. If all the hair on the entire scalp falls out, you can consider treating it with a decoction of perilla leaves for steam bathing and rubbing the scalp with sliced ginger to the point of local warmth.