Doctor Answers 3
This is a common cause of lower lid discoloration. Sounds like your issue is likely dermatitis/eczema.
Eczema: much more common in young people with fair skin. The treatment for this is to hold off on makeup and any manipulation of the lower lid for a few weeks and try some topical anti inflammatory creams. If you have allergies those should be treated also. A dermatologist is the best person to see for this. We have a multidisciplinary clinic with myself, a plastic surgeon, and my partner, a dermatologist which I think is ideal!
Dermatitis - eyelids
You may have dermatitis secondary to contact allergies. When eyelids itch, the tendency is to rub - which means hand to eyelid contact and more potential for allergens to land on the lid. I would recommend cool compresses with a clean wash cloth, NO EYELID RUBBING, and avoid lotions and potions until the skin clears up. If you must apply something for comfort, I would recommend a lubricating ophthalmic ointment available over-the-counter. If this doesn't clear up, see an ophthalmologist for additional suggestions. Rubbing causes inflammation, thickened skin, chronic changes including a crepe-paper appearance, detachment or stretching of muscles, tendons, ligaments. After the irritation clears, use some basic, gentle, hypoallergenic products - cleanser, sun screen, moisturizer. Dermatologist offices and some oculoplastics offices carry product lines that are specific to your needs. Best wishes.
Irritation under eye
There are a large number of things that could be going on. This is not the sort of thing we should advise you on over the internet. I strongly encourage you to see a doctor.