XP from TN: Home remedies for skin rash/itching?

[luvmygsp]

Im asking this for my brother, he just called & asked me if I knew anything to help w/this...short of baking soda + water = paste, topical (human) hydrocortisone, & Benadryl, thats all I got.

He has an American Fox Hound, so her hair is coarse & medium length. I couldn't talk long to him (I was at a race) so I didn't get much information about what she may have gotten into.

Does anyone have any recs? TIA!