Children with blood collection site infection will appear local pain, redness and swelling, and if the infection is further aggravated, fever and other symptoms may occur. Children’s finger blood collection wound infection, will appear in the blood collection point as the center of the redness, swelling, pain, oozing and other manifestations, at this time you can use povidone-iodine disinfection, use erythromycin ointment and other drugs for local application of anti-infective treatment. If the infection continues to aggravate, fever, chills and other symptoms of infection may occur, penicillin V potassium tablets, cefuroxime and other drugs can be used to control. After fingertip blood collection, it is recommended to use iodine povidone to disinfect the wound and use clean cotton swabs to apply pressure, and wait until the wound has healed before engaging in behaviors such as hand washing. If the above symptoms of infection occur, it is recommended to go to the hospital in time; the above medications need to be administered under the guidance of a clinician.