Controlled strain skin treatment devices and methods

A method for ameliorating scar formation in a closed wound using a scar ameliorization system comprising:

• a frame comprising a rectangular window;
• a strainable skin treatment device comprising an elastic sheet and removably coupled around a perimeter of a skin interfacing side of the frame so that the elastic sheet is covering the window;
• and
• a rigid straining device comprising a handle with a rectangular protruding element configured to push orthogonally through the window of the frame on the skin interfacing side and protrude from an opposite side of the frame when the handle abuts the skin interfacing side of the frame to strain the strainable skin treatment device;
• the method comprising the steps of:
• straining the elastic sheet attached to the frame by a predetermined amount by pushing the rectangular protruding element attached to the handle through the rectangular window of the frame until the handle abuts the frame;
• adhering the elastic sheet to a skin of a subject adjacent a previously closed wound;
• and
• releasing the skin treatment device from the frame.