Hi, my three yr old baby girl ear got pierced before six weeks...it's gun shot piercing...today morning left ear ring got struck on her head band unknowingly when I tried to pull it out it's back screw forcefully came out...but in tat ears had no bleeding n we changed her earring from surgical steel to 22k gold...but when I tried to change right ear it had bleeding...but somehow changed earring too...will it cause any infection...is it safe to apply mupirocin ointment to prevent infection...pls suggest duration n hw to apply it...one ear oly got bleeding...shall I apply on both ears ointment...