Baby acne?

Arielle

At 2 weeks old he began getting pimples on his face, neck, scalp, chest, chin. Hes 5 weeks old now and it got red and irritated so idk if its still baby acne or what, his neck is still red by the pimples are gone from it

Any idea what it is or i can do for it? I see his doctor next week for his 1 month checkup