There are a few things you can do to get rid of the smell of a female dog in heat:
1. Wash her regularly with a mild shampoo. This will help to remove any excess oils and odors from her coat.
2. Keep her area clean and free from urine and feces. This will help to prevent the build-up of odor-causing bacteria.
3. Place an air purifier in her room or area to help filter out bad smells.
4. Give her frequent baths with a medicated or anti-bacterial shampoo designed for dogs in heat. This will help to kill any bacteria that could be causing the odor.