Contact allergy? Do u mean that u have itchy eyelids after u apply eye shadow? If yes, you probably have contact allergy to your eye shadow! see an allergist or dermatologist for patch testing to find out what chemical u r allergic to.
Itchy eye lids. Itchy eye lids are becoming very common recently with the large amount of pollen in the air. First, i suggest that rubbing only makes the situation worse. If the lids have become red and irritated a few days of over-the-counter 1/2% Hydrocortisone twice a day will help. Only use it for a few days. Cold compresses will help with itching. If that doesn't help, see an ophthalmologist.