A kit for treating an antimicrobial resistant biological contaminate at a treatment site is disclosed which includes a diffuser tip adapted to receive near infrared therapeutic light from a light delivery system and diffuse the light to illuminate at least a portion of the treatment site a quantity of an antimicrobial agent instructions to use the antimicrobial agent in conjunction with the therapeutic light to potentiate the antimicrobial agent to treat the biological contaminate, and suitable packaging.
