The Good: Pyrethrins, for the most part, do seem to be relatively safe for most pets, though dosage is still the key. Many on-line sites list pyrethrins as being safe for cats, and as far as we can tell, used judiciously, they are not too much more toxic for cats than they are for dogs.
Yes: Razor bumps will usually go away when you stop shaving. There are a few things you can do to prevent them in the future. Shave in the shower so the heat can soften the hair, and use a shaving gel. Always use a brand new razor, and shave in the direction that your hair grows. Moisturize after shaving.
Given below are a few suggestions to help treat razor bumps. Instead of shaving the affected area to remove the hair, it is better to let it grow out and see if it breaks out of the bump within a few days. In fact, it has been observed that razor bumps tend to go away on their own when you stop shaving. This problem can usually be treated within three to four weeks. Tweezers.