Baby neck eczema

My 8 month old has been having a neck rash since September. We tried steroid cream twice for 4 days and it clears up the rash but as soon as we stop using the steroid cream the rash develops again. I put aquaphor everyday. I try to keep it clean and dry. I use hypoallergenic laundry detergent. My baby gets really itchy and scratched his neck and makes it bleed so we have been putting mittens on him but he just recently learned how to take them off. He also developed a face rash around his mouth a month ago. I’ve taken him to his pediatrician 3 times and he finally is referring him to a specialist. Does anyone have any treatment that has worked for their baby?