I get occasional swelling over one eye during exercise also happened during series of sneezes. happens 4-6 weeks do get allergy shots. mri was clean?

Allergic: That fact that the swelling is associated with sneezing suggests that these are allergic reaction although having unilateral swelling is unusual. If the swelling occurs only when exercising outdoors, airborne allergens may well be the cause as well. Allergy shots works about 80% of the time and usually takes months to become effective. Try antihistamine by mouth or eye drop prior to exercise.