I often get an itchy mouth and throat after eating fruit. What could be a cause of this?

You have what is called oral allergy syndrome. It is related to the pollen allergies. I used to have it to nearly all raw fruits and vegetables. Even getting the juice on my skin made me break out in a rash. These foods only bother you when they are raw, don't they? Allergy desensitization shots to the pollens can cause the oral allergy syndrome to go away. I had allergy shots for my pollen allergies. After being on the shots for five years, my allergy to raw fruits and vegetables went away! Now I can actually eat a salad and even watermelon.