Seasonal allergies (& chemicals) cause face to swell under chin and around jawline, painful and uncomfortable. With neck pain. Doctor didn't help.

Contact dermatitis? Your seasonal allergies are airborne, so would hit primarily moist mucous membranes (eyeballs, inside nose, palate and lungs); would not normally affect intact skin of face, chin, angle of jaw. I have seen extremely high pollen re-erupt childhood eczema on back neck and folds arms legs. Have u considered chemicals in sunscreen or other products causing contact dermatitis? Dermatologist visit?