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After shaving you should always apply a moisturizing lotion or after-shave oil that will help keep your legs smooth. It also softens the hair, leaving you less exposed to infections that are caused by hair getting trapped below the skin. If you did happen to nick yourself shaving, it's easily fixed. Razor cuts are difficult to stop bleeding, but if you dry the area and dab on some Vaseline, the bleeding will stop. If you've wound up with the tell-tale red bumps of razor burn, take care to treat it, so the bumps don't turn into scars. Put a warm compress on the area, which will relax the hair that's trapped below the skin of the bump. You should replace your razor at the first sign of dullness, which usually occurs between 5 to 10 shaves. Shaving with a dull razor will lead to razor burn. Old blades are also more likely to trap bacteria and cause infections.
Apply moisturizer or oil regularly after shaving. Stop the bleeding of any cuts with Vaseline. Treat razor burn. Replace your blades regularly.