Swelling of the hand by the cinnamon fish, should be disinfected in time, if necessary, need to use drugs, drainage, vaccination, etc., as follows. 1. Disinfection: Use saline or iodophor and other disinfectant to clean and disinfect the wound, and make sure whether there is any fishbone left deep in the wound, if there is any fishbone, we should consult a doctor to pick out the fishbone with an instrument. 2. Drugs: If the wound is accompanied by redness, swelling, oozing, pain and other symptoms, consider the emergence of renewed infection, you need to follow the doctor’s advice to take amoxicillin, cefaclor and other antibiotic treatment. You can also use mupirocin ointment, erythromycin ointment and other drugs to fight infection. 3. Drainage, vaccination: If the wound is deeper, you need to inject tetanus antitoxin to prevent tetanus; if there is pus, oozing, you need to clean up the wound, wound drainage, regular dressing change and other treatments. To summarize, if the wound symptoms worsen, you need to consult a doctor to give targeted treatment, do not blindly self-medication.