I've had a medium-coat male chihuahua for four years. Last week we adopted a young female whippet. I break out in hives most of the times she cuddles with me - but not all the times. It's bearable and they go away in 15 minutes, so there's no way I'm giving her up, don't worry. But I was wondering if I would build up an immunity to her or if you have any other tips?