Hi all, I'm after some advice. DS is 10, he has mild hay fever and mild allergic to dust, which was diagnosed with skin prick test when he was around 2. He doesn't take regular antihistamines, he just occasionally gets a sneezing fit and tickle in back of throat. We have a dog who is a "hypoallergenic" breed and he hasn't reacted to him (had him nearly 3 yrs), but I have noticed him having a mild reaction to other dogs. This didn't come up in the allergy test but he hasn't had one since. My friend is having lab/ golden retriever pups and I'd love to have one (and it's DSs fave dog), but I'm worried that once the adult coat comes through there may be a problem. Any thoughts? Is he likely to develop a tolerance to the dog given its a mild reaction anyway, or is there a danger it will get worse? FYI XH is allergic to exactly the same things as DS except he is very allergic to dogs. Also, DS lives with me half the week, so will that be a problem for tolerance build up? TIA