Lower abdominal pain may be related to urinary tract infection, inflammatory bowel disease, intestinal tuberculosis, etc. According to the different causes, you should choose to take amoxicillin, salazosulfapyridine, rifampicin and other drugs. 1. Urinary tract infection: urethritis, cystitis, prostatitis, etc. can lead to lower abdominal pain, you can take antibiotics such as amoxicillin, fosfomycin, levofloxacin, ceftazidime and so on for anti-infection treatment. 2. Inflammatory bowel disease: such as ulcerative colitis and Crohn’s disease, should control the inflammatory response, can take aminosalicylic acid preparations such as salicylazosulfapyridine, 5-aminosalicylic acid, etc., glucocorticosteroids, such as prednisone, methylprednisolone, etc., as well as immune suppressive agents, such as methotrexate, azathioprine, etc., and if secondary infections, can be taken to a broad-spectrum antibiotics, such as penicillin, cefoperazone, etc. treatment. 3. Intestinal tuberculosis, tuberculous peritonitis: isoniazid, rifampicin, ethambutol, pyrazinamide, streptomycin and other anti-tuberculosis drugs, if the abdominal pain is serious, you can take belladonna tablets, atropine, scopolamine and other antispasmodic drugs. 4. Constipation: long-term chronic constipation may be manifested as abdominal distension and abdominal pain, etc., can take lactulose, magnesium sulfate and other treatment. The above drugs are prohibited for those who are allergic, and should be taken in accordance with medical advice. If the patient appears the phenomenon of hidden pain in the lower abdomen, it is recommended to go to the regular hospital in a timely manner, after clarifying the cause of the disease, under the guidance of the doctor for targeted treatment.