Pollen food syndrome usually occurs in people with hay fever who are allergic to pollens. It can cause allergic reactions when you eat certain fruits or vegetables. This is because the proteins in pollen are similar to the proteins in the fruits and vegetables.
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 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, symptoms involve the oesophagus (food pipe) or stomach, such as abdominal (tummy) pain, feeling sick and vomiting.
- Sneezing, runny nose, or symptoms affecting the eyes.
- Very rarely, more serious symptoms known as anaphylaxis, can occur. In such cases, immediate medical help is needed.