NewShiny... what my son found to work for him the best regarding the "butt burn"..
I buy the Huggies Brand sensitive wipes (some of the other brands had to much alcohol and burned) and Bordeaux's Butt Paste. You can get it in the baby product isle of any food market (Here we have Publix markets). but they make two kinds, one is the regular strength with 16% zinc oxide and the other is the Maximum strength with 40% zinc oxide. I could only find the Maximum strength at Super Target. But it literally saved him!! Not to be too graphic, but he was raw after the first few days home from the hospital. You have to imagine, nothing had passed through there for 6 months and now "Bamm", he was going every couple hours. This stuff is great!
I also looked into getting a bidet (he actually suggested it). there are some models that you can get that are just attachments to your regular toilet. But I also just had a new shower head put on in his shower that has the hand held attachment. I know that it's not as easy as having a bidet, but a lot cheaper.
Good luck!!