It is often seen that after trimming your private parts, it gives you an itchy feeling. To remove it, you must sterilize or clean all the materials you're going to use in the process. You can rinse your genitalia with cold water before trimming. After trimming hair, the skin can become irritating and itchy. This is when you apply moisturizer on the shaved area. It will soothe the irritated skin and reduce skin itching.