How can you tell between seborrheic dermatitis and eczema? Pictures online make me believe it's one or the other. Effected - r. eyelid/r. behind ear.

The two. disease are "similar": but have very DIFFERENT causes and LOCATIONS all of which allow the trained DERMATOLOGIST to distinguish the two. The "appearance" "ONLINE" is NOT helpful in making that diagnosis!!!! Ask your PCP for a referral!!! Hope this helps! Dr Z.