i have a 1.5 year old gsd girl, she takes comfortis once a month and is also on the topical flea medication. i just put her on the salmon oil/omega-3 today and was wondering if that/or what else will keep her from scratching and chewing her skin? it’s not extreme but it’s noticeable. i don’t see any fleas. just maybe hot spots? i’m not sure. any and all advice is appreciated!