 [ Symptoms ] my 8 month old daughter just developed this sorerash on her scalp [ Disease ] what kind of ear infection the only one that may benefit from an injection of a potent steroid would be an inner ear infection dizzy vertigo vomiting etc  cortisporin eardrops will only help otitis externa swimmer is ear since i do not know the reason for the steroid the type or severity of your ear infection ther is really no way to predict when or even if this treatment will work