Question for the mommas with a child who has/had a milk protein allergy. My 8 month old has a milk…

Question for the mommas with a child who has/had a milk protein allergy. My 8 month old has a milk protein allergy and is currently on Nutramigen. When he is a year old, will he be able to drink regular cow’s milk? He has an appointment later on this month so I will ask his doctor then, I just want to get an idea and hear from mothers who have experience with this.