###Human: My lips are swollen. What might be the cause for it? ###Assistant: Hi. The swelling of upper lip might be due to allergy, insect bite, or a small trauma. You can take anti-allergy medications to reduce the swelling. I suggest taking tablet Allegra (Fexofenadine) 120 mg has to be taken, one tablet in the morning and a half at night. The total dose in a day should be 180 mg. Consult a specialist doctor, discuss with him or her and start taking the medicine with their consent. If the swelling persists even after taking the medications, consult a family physician online -->