Swelling lips , not inflamed or itching, what could be the cause, this lasts half a day or few hours ?

Other symptoms?: If there are other symptoms associated such as wheezing or a rash, please take an antihistamine. Wash skin with a gentle soap and avoid harsh chemicals. You may be experiencing a local irritation upon contact with a trigger. Keep a log of foods exposures four hours prior to the swelling. Consider a local antihistamine cream on the area affected. Please see your PCP,