A therapeutic device and related method of use are described. The device features a flexible member that includes one or more emitters of for example, electromagnetic radiation, thermal energy, magnetic fields, and/or electrical fields. The device can be readily attached and removed from a user's skin by sealingly contacting the flexible member upon a region of the user's body of interest to create a vacuum. The device may also impart other therapeutically beneficial results such as intensified blood circulation from formation of the vacuum along the user's skin, and can also be used for blood irradiation.