Hmmm ticks? Where'd you get this snake? Pet store? You're a new keeper with a snake with ticks and a nasty belly and what may well be the start of an RI (or one it has been brewing all along). None of them are good, all three together are definitely not good.

Since this snake obviously came to you with the beginnings of this belly issue and with ticks and either has had or now has an RI you need to be calling a herp vet and getting an appointment set up. Have you contacted the place you bought it from about these issues? It isn't really something you likely can or should be messing with without vet intervention.

In the meantime what temps are you keeping this snake at? Humidity? Tank setup? Pics are helpful if you can post some. If you need help locating a vet in your area that sees snakes, just let us know.