What to use?? Raw butt from pregnancy diarrhea

I’m wondering if anyone has suggestions on what I could use to help with the pain around my butthole/crack? I’m in my first trimester and it seems my morning sickness is constant pure water diarrhea, so as you can assume it’s RAW down there and so sore to sit, go to the bathroom, sneeze, literally anything. I’ve tried putting penaten on it, but it hasn’t really helped. Anyone have some tried and true products to help?!