I have two Staffordshire Bull Terriers, one 5 year old male and a 6 month old bitch. The pup seems to have developed bald patches over her body and under her arms. There are a also a couple of bald patches on the top of her head. She doesn't seem to be scratching and the skin isn't red but seems very dry. I feed them both on Royal Canin (hers is puppy skin and digest) his is for fat boys who have just been chopped! They have both been fully vaccinated, wormed and given the vets version of stronghold (can't remember the name). When I picked the pup up from the breeder her mum had fox mange, would this be the cause? The male Staffie isn't affected at all. Please help.