Some but not all. If when eating raw apple only your mouth itches & your throat feels tight you may have oral allergy syndrome caused by a allergy to birch pollen. If you also have upset stomach, vomiting, coughing, difficulty breathing, hives, lip swelling, or dizziness you likely have true apple allergy. People with the latter have the same symptoms with baked apple. Skin or blood testing can differentiate the two.