Hi, DS is 3.5 years old, I've noticed a few times over the last year or so that he gets a rash around his mouth whilst eating, it's only ever been if he has eaten mayonnaise or eggs. Does this sound like an egg allergy? I can't think what else it might be. It doesn't seem to bother him and he doesn't get any other symptoms as far as I'm aware. It doesn't happen every time he eats mayonnaise and he very rarely eats eggs themselves.
What do you think? What should I do?