I used to just try let water run over it, pat dry then use a hand held fan to fully dry. I hope it heals for you soon!
7 months PP and it still feels very odd and gets sweaty a lot. I make sure to bathe and then hair dryer it on a cool setting to make sure it’s clean and properly dry every day
Get yourself a loofa and pour the soap on it and gently wash ur incision. If it’s infected only use loofa for that area. Make sure u rinse it off really well and dry very well Leave ur incision to also air dry so hold ur belly up in front of a fan. Also make sure ur drinking lots of water too! Helps to heal your body by stay in hydrated
If it hasn’t gone away you should definitely follow up with the GP or health visitor