Tide water mark dermatitis is seen:-
Allergic contact dermatitis
Contact dermatitis to rubber used in disposable napkins
Band shaped papular dermatitis
Papulo-erosive ulcer
Tide water mark dermatitis is a band shaped papular eruptions on the thighs and abdomen at the diaper edges, characteristically sparing the skin folds Variant of contact dermatitis.
JIPMER 2018