If the material of the mask is greasy and clogs the ducts of the sebaceous glands of the hair follicles, it can cause the occurrence of acne, folliculitis papules, or pustules, or even large cysts and nodules are also possible. The clinical treatment can be topical Adapalene gel for small pimples, or Fuchsin gel or Clindamycin phosphate gel for pustules twice daily, and oral doxycycline capsules or minocycline hydrochloride capsules for treatment. If large cysts and nodules appear, they need to be treated with dye laser irradiation, or pulsed laser irradiation. You can also choose to use Chinese medicine fire needling to excrete the contents to reduce the local inflammatory reaction and promote the improvement of acne.