This is rather out of the blue, but does anyone have any thoughts on treating bedsores?

I have developed a sore on my left buttock. There's a bruise and the buttock is quite painful. The skin is more or less intact and I am mindful of the potential for infection. I've been cleaning the area with betadyne and bandaging it with neosporin. I tried some Calmoseptine, but all it did was dry it out, which is what I did not want.

How to go with this? I can't sit down because of the bedsore and I can't stand on my feet for long because of the PN.

Thanks.