My baby is 3 months old soon to be 4 and I believe he has eczema what is the best thing to do?

I’ve been using the Gentle Naturals Baby Eczema Cream with aloe and calendula for a few weeks now im not sure if its gotten any better. Is this good and is it sumthing better or sumthin that will make him more comfortable because he cries when I rub it on, not so sure why either? Also I’ve started givin him the stage 1 applesauce and sweet potatoes could this be a reason for the breakouts?

take him to the dermatologist. dont try to diagnose your baby if u dont know what your doing. if your not 100% sure he has eczema then dont put Eczema cream on him. that could make the problme worse. take him to the dermatologist please