Face Rash

My 13 month old son almost always has some redness on his face around his mouth. It’s worse when he eats or drools a lot and improves when we put lotion on his face. We don’t think it’s a food allergy because it’s fairly consistent and I can’t figure out if it’s triggered more by certain products I use. I try to wipe his face with water only. Our pediatrician isn’t worried about it, but I was wondering if anyone has had a similar experience with baby’s sensitive skin and if there are any lotions/ products you like that help?