Hello,
I can understand your concern. Yes, swollen lips have nothing to do with the food poisoning you have as you have assumed. It is possible that you have had an
allergic reaction to some food item, allergen in the air or from the insect bite.
You should start taking antihistamine to control the reaction. You can take either Levocetrizine 5 mg (Levocet) or Loratidine 10 mg (Lorfast) for 5-7 days once a day. This should control the allergic reaction.
You can take
Norfloxacin (Norflox) 400 mg twice a day for 5 days for the
stomach infection you are suffering from. If your lip is swelled due to bacterial infection, this antibiotic course can control the swelling, too. Keep drinking lots of fluid to prevent
dehydration and have soft diet that is easy to digest for a week.
If the swelling does not come under control or decrease in 2 days, then you should consult a physician or
dentist for examination of them and further investigations and treatment.
I hope this information helps you. Thank you for choosing HCM. I wish you feel better soon.
Best,
Dr. Viraj Shah