Hi,
Bactrim is a combination of two antibiotics namely
sulfamethoxazole and trimethoprim. It is used to treat a wide variety of bacterial Infections like middle ear,
urinary tract, respiratory, Intestinal Infections. It is also used to prevent and treat a certain type of
pneumonia (pneumocystis type).
Symptom of a serious allergic reactions of this medication are rashes, itching, swelling of lips, tongue or throat, breathing difficulties,
dizziness etc. So, swelling of lips may be caused by this medication as side effects. Antihistamines and cortico-
steroid can be used to get rid of lips swelling. Consult with your prescribing doctor, he may change this medication and choose another medication for him.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Zubayer Alam, General & Family Physician