I think leaving salts on one's skin can cause itching. You may have a yeast
problem (I am guessing) and if that's the case I would stop doing the baths and take care of that problem first.
Many years ago I had root canal
work done and was given Cipro
in case of an infection and lo and behold, I got an infection in my female area and that drove me crazy with itching! I used monostat and that helped me.
If you are talking about another area, you can always e-mail me if you feel embarrassed..
Hope that helps,