Crayfish pinched usually can be placed in the water to make the crayfish to loosen the clamp, and then according to the specific circumstances of the injured part to disinfection or medication. 1. disinfection: by the crayfish pinch if the skin is relatively minor damage, and bleeding is not much, then you can first disinfection, such as the use of iodine povidone and other disinfectant wash, can play a sterilizing effect, and then use band-aids, gauze and other bandages can be used. 2. medication: if the crayfish caught after the skin breakage is relatively large or deeper wounds, then usually need to go to the hospital in a timely manner under the guidance of a doctor to use medication, such as cephalosporin capsules, amoxicillin capsules and so on. If necessary, you can also follow the doctor’s instructions to inject tetanus vaccine to avoid infection with Clostridium tetani. Crayfish itself contains bacteria and parasites, if the wound site caused by crayfish is relatively small, then it is also recommended to timely treatment, otherwise it will increase the chance of infection.