this isn’t a secret or anything, but if you just got your bellybutton pierced (like I did) you really need to do the sea salt soak!!!
My piercer, although he was good at actually piercing, he was not good at explaining how to care for it. Thankfully my friend had a better piercer, and he told her to do the sea salt soak. So after I finally got sea salt, i tried it.
I had been using antiseptic wash, and it never really felt clean, but I did the sea salt soak and I could actually see all the gunk that was left in there come out, it was gross, but dude it’s cleaned out.