Wound scab is thick and hard if there is no other discomfort, can not be treated, if there is pus accumulation under the scab, need to drain pus, sterilization treatment. If the wound heals into a thick and hard scab, but there is no other redness, swelling, heat, pain and other reactions, generally do not need special treatment, after a period of time, granulation, new skin generation, the scab will fall off. However, if the wound is pseudo-healing, after scabbing, it will be easy to accumulate pus under the scab, usually accompanied by redness, swelling, pain and other sensations in the surrounding skin. At this time, the wound should be re-exposed by a professional doctor, and then the pus should be drained, sterilized with iodophor, hydrogen peroxide, etc., and bandaged appropriately to prevent external bacteria from entering and causing infection. It is recommended to go to the hospital as early as possible when the scabbing is accompanied by uncomfortable symptoms to avoid worsening of infection symptoms and adverse effects.