Hi Dear, Understanding your concern. Brief answer - Oral Allergy syndrome As per your query your girl friend has symptoms of food allergy. Swollen lips, burning sensation on tongue are natural response of body to fight against the allergic reaction. These symptoms could be due to food intolerance as body s immune system don t allow to have certain type of food substances. Need not to panic about anything. Beware of food substances which you had to avoid any problem in future. Take antihistamine tablet of epinephrine. Take epinephrine shot as well. Drink plenty of water. Cook vegetables properly in future before you eat them to prevent any allergy. Apply ice on swollen lips to get relief of symptoms. Visit general practitioner once if your symptoms keeps on increasing. Hope your concern has been resolved. Get Well Soon. Dr. Harry Maheshwari