Dr. Mercola (
www.mercola.com) suggests not to eat eggs more then a few days in a row if they are cooked, or otherwise you may develop a slight allergy.
He also says that if you eat raw eggs that you can eat eggs(cooked or raw) as much as you like without developing an allergy.
I have found the first part to be true. I am not brave enough to eat raw eggs yet. I would like to start doing it though.