Cleaning boy’s privates

How do u clean ur baby’s circumcised penis? I always feel like I’m doing something wrong. I bathe my baby every night and clean around his penis with soap water and a washcloth. If he still has some smegma when I take him out the bath I might clean it off with a wet q tip I then make sure he’s dry and sometimes put vaseline on it. Here’s the issue sometimes the tip gets quite red and almost looks raw. I’ve told his doctor but he doesn’t really give me any answers…