Waking up with a puffiness underneath my right eye (not on my eye), looking swollen. ?

Irritation: . Corneal abrasion or rub during sleep. Occasionally pink eye will present like this. Allergies usually bilateral. Baby shampoo and clean lids carefully for any residual debris. Warm compresses may help.If not quickly resolved, see opthalmologist particularly with your other issues.

Allergy symptoms: Capillary leakage from histamine release due to allergies cause the swelling. With chronic capillary permeability, red blood cells leak and stain the skin leaving a darker pigmented appearance. Allergy medicine (anti-histamines) should help as well as cool compresses on the area. If your treatments are not working then seeing an allergist for definitive treatment should be your next step.