My understanding is that the common allergen is in the egg whites, not the yolks. So he could start eating yolks now. As far as the whites go, I guess it's whatever your comfort level for introducing common allergens like dairy, strawberries, etc. Most say after one year unless there is a family history of allergy, then perhaps longer.
Both my dds started having egg yolks at 4 months. It is the egg white that is problematic. They shouldn't be given until after 12 months AND the whites should always be FIRM, as in completely cooked, not runny. This is for children of all ages (adults, too).
I guess I am the bad one!!! My dd was eating scrambles eggs (yolks and whites) at 6 months. I am doing things a bit differently with ds because I am trying so very hard to breastfeed that I really don't want anymore interruptions than absolutely necessary!
Just to let you know, allergy testing is not 100%, plus it's also possible to develop allergies after repeated exposure.
My 3 year old had severe food allergies when she was younger and all her testing showed nothing. My 8 month old also has severe food allergies and her testing shows nothing as well.
JMO but I think it's better to be safe and hold off on common allergens as your dr recommends and you feel comfortable with.
Stephanie, mom to 3 big girls ('94, '99 & '02) and to my little guy (12/30/09) intact & CD'ed!