Abstract: A portable light therapy treatment assembly includes a housing and a control unit that is mounted in the housing. A power supply is mounted in the housing and electrically coupled to the control unit. A light emitter is mounted in the housing and emits light outwardly of the first end when the light emitter is turned on. The light emitter is electrically coupled to the control unit. The control unit is programmed to allow the light emitter to be used a pre-selected number of usages. Each of the usages defines a treatment and the total number of usages defines a prescription. The control unit requires a reset input when the prescription has been fully utilized.