Vacuum the carpet thoroughly
Sprinkle baking soda over the affected area
Let the baking soda sit for several hours or overnight
Vacuum up the baking soda
Mix white vinegar and water in a spray bottle
Lightly spray the odor source without soaking the carpet
Blot the area with clean towels
Use an enzyme cleaner for pet urine or organic odors
Follow the product instructions carefully
Repeat treatment if needed
Increase airflow with fans and open windows
Steam clean the carpet if the odor persists
Replace the carpet pad if the smell remains
Call a professional carpet cleaner for severe odors