Red buttocks, what to do?
Don't panic, this discomfort is quite common. Rashes can be caused by irritation from diaper friction, a temporary digestive upset, or a teething outbreak. In these cases, there are solutions to end your child's suffering.

Don't panic, this discomfort is quite common. Rashes can be caused by irritation from diaper friction, a temporary digestive upset, or a teething outbreak. In these cases, there are solutions to end your child's suffering.
Above all, handle with very gentle gestures, baby is hurting! Change them frequently and clean with a gentle, non-aggressive product. After each change, apply a thick layer of insulating and protective cream around the anus and on the buttocks.
If the redness persists, consult your doctor.
Also read:
Irritated baby skin, what to do?
Diaper cream, why use it?
Baby changing, become a pro!