
I'm not really sure from your description exactly whats wrong, but I think it sounds like lip fold excema. Is the affected area along the outer edge of the bottom jaw, the bit that is hidden beneath the top lips? If that's the place then this might help. I have an Irish Setter that gets lip fold excema, the smell is dreadful, fishy!!!! I use iodine skin antiseptic applied with a cotton wool ball. I give it a good scrub with the cotton wool, and I do this a couple of times a week.
When he has a 'flare up' I do it every night and every morning.
Iodine Skin Antiseptic is available from the Chemist.
Dawn R.