Hi again, Yes, my vet, told me to give them to my old Labrador, as he was allergic to mould spores, so he had them through the autumn months, which made him a totally different dog, as his eyes would puff up, causing them to itch, he would then rub and rub so much making them bleed, which in turn caused them to ulcerate, so needed an operation!
in the end we went to a homeopath, who desensitized him, which then we didn't need the Piriton after that !