Chloroacetic acid splashed on skin requires first aid treatment with water rinsing. Chloroacetic acid is highly toxic, non-life threatening, and silicone gel can be applied to obvious skin burns. Pre-chloroacetic acid splashed on the skin, you need to immediately rinse the splash site with water, do not overflow to avoid injury to the skin, rinse time lasts more than 30 minutes, avoid using hot water, water rinse with 5% sodium bicarbonate solution and then rinse thoroughly, if there is no home, you need to seek medical attention in a timely manner. Later on, according to the specific conditions of the choice of antidote drugs, for moderate and severe burns caused by systemic poisoning patients, should be taken comprehensive treatment. For burns of large size and depth, cut scabs and skin grafts, thoroughly remove local necrotic tissues, and prevent the continued absorption of chloroacetic acid. After the systemic symptoms are relieved and the local skin recovers, silicone gel can be applied to prevent scar formation after the scabs fall off. Chlorohexanoic acid is highly toxic and inaccessible to normal people. Therefore, it is crucial for chemical pharmaceutical factories to formulate strict rules and regulations, improve the quality of packaging, regularly overhaul equipment, and strengthen technical training, hygiene education and the wearing of personal protective equipment to prevent accidents. Once chloroacetic acid poisoning occurs, it should be treated immediately.