Begin by scraping any excess vomit from the fabric. Run fabric, inside out, under cold water to flush out as much vomit as possible. Pretreat with prewash stain remover, and launder in the hottest water the fabric will allow.
Run fabric, inside out, under cold water to flush out as much of the urine as possible. Treat the stain with detergent and soak in cold water. Launder in the hottest water the fabric will allow to finish removing stain.
Pre-treat stain with detergent or spot treatment and soak in warm water. You can sprinkle un-seasoned meat tenderizer onto stubborn stains for extra removal power.