The hand was cut by the knife and swollen with inflammation may be due to the infection caused by poor hygiene. You can use local povidone-iodine disinfectant, but also oral anti-inflammatory drugs and other treatments, such as penicillin V potassium tablets, amoxicillin, cefadroxil capsules and so on. The hand was cut by the knife to the inflammation of the swelling can use iodophor disinfectant to disinfect the hand injury, disinfection effect is better, you can also follow the doctor’s instructions oral penicillin V potassium tablets mainly by destroying the bacterial cell wall to produce bactericidal effect. Amoxicillin has an anti-inflammatory effect and is well absorbed in the mouth. Cefadroxil capsules have an anti-infective effect and are suitable for infections caused by sensitive bacteria. The patient may be advised to immediately flush the wound with hydrogen peroxide solution. Apply alcohol cotton around the wound to prevent wound infection from increasing the swelling of the wound. The hand was cut by the knife to the inflammation is recommended to consult a doctor in a timely manner, under the guidance of a professional doctor to standardize the treatment and medication, so as not to delay the condition.