A small bag grew on the back of the neck. How can it hurt or itch? There are several.
Guiding opinions:
This situation seems to be folliculitis, which has been recorded in Chinese medicine for a long time. I suggest you treat it with Chinese medicine. Folliculitis can be treated with Baiduobang or Pibaijin herbal ointment for external use, or with traditional Chinese medicine, or with acne hair follicle drink.