A therapeutic device includes a generally rigid but elastically deformable sheet body including a bridge portion, first and second support portions extending outwardly from the bridge portion in opposite directions along a longitudinal dimension, and adhesive or an adhesion member on a first surface along the bridge portion that is adapted for adhesion to skin of a user above a target site. The therapeutic device also includes first and second projections on the first surface proximate to lateral edges of the sheet body. The sheet body is configured to assume a neutral configuration in which the first and second projections space the bridge portion and the adhesive or the adhesion member apart from the target site by an air gap, a depressed position during affixation of the first surface to the target site, and an adhesion configuration after affixation of the first surface to the target site.
