After surgery, if the symptoms of infection are mild, patients with appendicitis can take oral anti-inflammatory drugs, commonly used are amoxicillin capsules or amoxicillin dispersible tablets, and cefadroxil tablets, which are all β-lactam antibiotics, which are broad-spectrum antimicrobials and have anti-infective effects. If the patient is allergic to these drugs, macrolide antimicrobials, mainly including roxithromycin tablets, can also be applied, and attention should also be paid to fluid supplementation during treatment. Because patients with appendicitis, the acute period after surgery should be treated with intravenous rehydration. Usually, 1-2 days after surgery, the patient can ventilate through the anus and eat through the mouth with a liquid diet after the intestinal tube function is restored, but the anti-inflammatory treatment should be maintained until the stitches are removed to avoid infection.