I would not send it to the cleaners. You will problably be more gentle with it then they are. I would soak in the washer , hopefully you have a regular not high efficency machine. Use the soak cycle with baking soda( a whole box ), and about 1 cup white vinegar and about 1/4 cup of gentle laundry soap. Use alot of water , filling the machine as high as you can. Let it soak over night, then start the gentle cycle. You may want to do this twice . If you can still detect odor after the first try.