just wondering if anyone could help, my terrier has been getting these crusty spots over her body mostly the top of her head, legs, tail and a bit on her back. the bigger spots seem to have puss underneath and although it looks scaby it does not bother her one bit no itching at all. it started a while back and i first tried dipping her in tac tick as i was advised and also give a front line. this did not clear it so i took her to the vet who did'nt know what it was, he said it looked like some kind of ring worm and the treatment for it had been taken off the market so just let it clear itself