Abstract: A phototherapy system for treating a user can include an applicator, a controller, and a communication cable configured to couple the applicator and the controller. The applicator can include a light source, a thermal sensor, and a fan. The controller can be in communication with the applicator. The controller can be configured to receive a predetermined treatment regimen to be applied to the user via the applicator. A method for treating skin presenting psoriasis includes providing a phototherapy system. The user can select a skin type on the controller. The use can place the applicator adjacent to the skin presenting psoriasis, eczema, or vitiligo. The user can receive a light therapy treatment from the applicator, whereby the psoriasis, eczema, or vitiligo has been treated.