When the infection causes an abscess to form initially, it's quite soft. That's not when you're supposed to touch it, for it can get more infected. To heal, it needs to form into a tight or hardened form where you might see a head-like formation on it. If it's hardening, it's on the way to healing either by dissolving with time or bursting out the fluid. If it's difficult to wait, you might want to visit a doctor to let them decide the form of treatment to heal it, and they might even recommend minor surgery to perform an incision to drain it.