Remove any solid debris immediately
Blot up as much liquid as possible with paper towels or clean cloths
Wear gloves and use a plastic bag to dispose of waste
Open all doors and windows to ventilate the car
Remove floor mats and wash them separately
Sprinkle baking soda on the affected area and let it sit for several hours
Vacuum up the baking soda thoroughly
Clean the area with an enzyme cleaner made for organic stains
Wipe hard surfaces with warm water and mild soap
Clean seat belts, carpets, and upholstery carefully
Use a wet-dry vacuum if available
Repeat cleaning if any odor remains
Place activated charcoal or odor absorbers in the car
Leave the car in fresh air with windows open when possible
Replace the cabin air filter if the smell persists
Use a fabric-safe odor neutralizer after cleaning
Have the car professionally detailed if the odor does not go away