DD2 (19mo) has been ill pretty much constantly since April. Mostly it's been ear infections, for which she's having grommets now, but she's also had croup, a skin infection that wouldn't go away, really bad mouth ulcers and a UTI. The paed we saw in A&E the other night mentioned it might be worth having her immune system checked but I am thinking that with all those ear infections and being on antibiotics all the time, it's no wonder that she can't fight infections any more. What does everyone think? Can I do anything to boost her immune system?