Please choose the correct ending to complete the given sentence: Health: [header] How to prevent ingrown hairs on the pubic area [title] Use a sharp, single-blade razor to shave. [step] One of the biggest mistakes you can make when shaving your pubic area, is to use a dull blade. Use a razor that is sharp enough to cut the hair without having to go over it again and again.

Ending1: Dull razors don't allow any hair growth, so unless you cut or otherwise shave it, use a dull blade, or use blunt, regular blades for the same purpose. [substeps] Remember not to use thin razors as these will dull your pubic hair. Ending2: [title] Shave your pubic hair one day in a week. [step] Don't get your pubic hair cut for the first two weeks after you have warts. Ending3: [substeps] Depending on how often you shave, you may need to replace your blade every month or so. Some people switch out blades after five uses, but determine what works best for you. Ending4: This will ensure that all the shaving is done evenly, and is at its optimal temperature. [substeps] There are manmade razors available from many sporting goods stores and online.

Answer format: ending1/ending2/ending3/ending4