Oral allergy syndrome
What is Oral allergy syndrome?
Also known as Pollen Food Syndrome (PFS), usually occurs in people who are allergic to pollen. Fresh fruit, raw vegetables and raw nuts are common causes of PFS. Some people are affected by only one or two foods and others can react to a wide range of foods. People who have PFS will usually experience mild itching or swelling of all or part of the lips, tongue and mouth.