Symptoms are usually mild and may respond to antihistamines but speak to your doctor to make sure this is the right treatment for you.
Symptoms of pollen food syndrome usually include:
- redness, mild swelling or itching of the lips, tongue, inside of the mouth, and ears
- itching and mild swelling of the throat
- occasionally, people might also have symptoms in the oesophagus (food pipe) or stomach, causing stomach pain, nausea and vomiting
- sneezing, runny nose, or symptoms affecting the eyes.
Rarely, more serious symptoms can occur, known as anaphylaxis (anna-fill-axis).
Serious symptoms are unusual because the proteins that cause the pollen food syndrome are unstable and are destroyed with heat or once they reach the stomach.
Most people with pollen food syndrome have allergic reactions if they eat the raw fruit or vegetables, but they are able to eat the cooked fruit or vegetables without any problem.
However, if you have an allergy to celery that’s not because of cross reaction with pollen, you may have a reaction to celery even when it is cooked.