red spot sa pisngi ng butt ni baby..

Momsh, based on how you're describing it, started hard and may have had pus, now softer pero may redness pa, sounds like it could be a cyst or skin infection na nag-improve na talaga, kaya better to have your pedia check it out just to be sure it's healing well and walang risk of infection ulit. A few of us moms had similar bumps sa babies namin na nag-clear eventually once treated, so it should be fine, pero doctors can tell in one quick look kung okay lang or if kailangan ng anything specific!