Hot compress eye mask has the benefit of improving local blood circulation to the eyes. The disadvantage is that if you use it irrationally and choose a heat-sensitive eye mask with inappropriate material and brand, it may damage your eyelids. 1. Benefit: The main function of heat eye mask is to heat the skin around the eyelids, through this function, it can promote the blood circulation around the eyelids, so as to relieve the symptoms of eye fatigue. If you don’t have a hot eye mask, you can also use a hot towel instead. 2. The bad side: the local sealing performance of the hot eye mask is good, which is not conducive to heat dissipation, so if the selection of materials is not good, it is easy to cause local skin burns, which can cause some damage to the eyelids, and even cause transient blindness. It should be noted that the hot eye mask can not replace the physician to treat the disease, if you feel uncomfortable, please consult a doctor immediately to avoid delaying the condition.