This is a typical milk protein allergy. It is suggested to suspend the use of ordinary milk powder for children first. Rash and spitting milk are mild symptoms of milk protein allergy. If you are not at ease, you can go to the hospital for examination or try a can of hydrolyzed milk powder directly for your child. When my baby was allergic before, I switched to Jia Min partial hydrolysis. It is said that this milk powder destroyed the allergic structure of milk protein in the process of hydrolysis, which can relieve the baby's allergic symptoms.