To get sick smell out of fabric sprinkle the fabric with some baking soda.
The baking soda will help to absorb the sick smell odor from the fabric.
If the sick smell is on a couch or other upholstery then also sprinkle baking soda onto the upholstery or couch and allow it to sit.
Then spray some vinegar and water onto the couch or other upholstery and allow it to sit and then use an upholstery cleaning machine to suck out the dirt and odors.
If the sick smell is in some fabric such as clothing etc then mix some baking soda with some vinegar in a bucket and soak the fabric or clothing in the bucket for a few hours.
Then place the fabric in the washing machine to wash.