What can someone use for a baby's bad diaper rash?

Frequent changes: Diaper rashes can be caused by chemical irritation by stool contents. Frequent changes of the diaper when rashes appear and allowing the area to air breathe by keeping the diaper off after a change, can be helpful. Thick diaper creams such as zinc oxide can be helpful also. Sometimes yeast infections can be part of bad rashes. If you have tried all of the above, you may need to see your doctor

Diaper rash: For diaper rash keep baby's skin clean & dry. Change diaper as soon as it's soiled or wet. For healing allow baby to go without diaper for periods of time so affected area can air out. Avoid tight diapers or airtight covers over diaper. Meds your Dr. might recommend include antifungal cream (for fungus), a steroid cream (for significant inflammation) or an antibiotic (for bacterial infection.)