What kind of allergy cause white patches on babys face later on flaking?

Reply: Baby's skin is very sensitive. Especially face is exposed to many topical irritants like saliva, rubbing their faces on clothes while being held, face wipes. It's very common to have dry flaky skin on face in babies. Try to keep the face moisturized all the time, used damp washcloth to tap dry the face after feeds, use shoulder towel while carrying, see his dr. As needed.