Ever had a friend or family member show up on your doorstep without an invitation, suitcase in hand, and looking for a place to crash? Psoriasis can feel an awful lot like that. It stops by for an unannounced visit, decides it likes the digs, and quickly turns into the houseguest from hell. No matter what you do, you can’t convince it that it’s time to go home. If topical creams and gels aren’t helping, and prescription solutions are harsh, it might be time to shine a little light on that unwelcome visitor with this hand-held UV phototherapy device. It can effectively and painlessly kick that hanger-on to the curb.