Question
Last month, my son suddenly lost a patch of hair at the back of his head. However, the area where the hair fell out is still growing hair. The spot where the hair fell has a bit of redness, but it’s not itchy or painful.
Answer
Your son’s situation might be alopecia areata, commonly known as “bald patches,” which is a sudden onset of patchy alopecia. The affected scalp is normal with no inflammation or conscious symptoms. The course of the disease is slow, and it can resolve and recur spontaneously. If all the hair on the scalp falls out, consider using Bo Ye decoction for fumigation treatment, and apply sliced ginger to the scalp to achieve a local sensation of warmth.