Keeping infected incision dry.. tips please!

I had my c-section on August 12 and last week my incision got red and irritated. I saw my OB and am on antibiotics but it’s still looking kinda the same.

I’m plus size so the incisions right in a skin fold and really only gets air when I lie on my back and hold my tummy up. Caring for a newborn doesn’t leave a lot of time for that even though I know it’s what my incision needs to heal 😕

Any tips on keeping incision dry/getting enough chances to air it out while caring for a newborn?