Bikini line razor burn is a common problem because the skin in this area can be very sensitive and prone to bumps, ingrown hairs, and redness. The best way to treat this problem is to stop shaving for a few days and apply a gentle moisturizer that contains aloe; some people find that a hydrocortisone cream is also helpful in reducing pain and redness. This type of razor burn will typically take a few days to heal, and it is then best to prevent the problem in the future by always using a fresh razor and shaving cream when shaving the bikini line area.
To prevent razor burn on the bikini line in the first place, it is best to begin by shaving in the shower to soften the skin. Apply shaving cream, not soap, and use a new razor with a sharp blade. A dull blade will be more likely to cause razor burn and ingrown hairs. Rinse the blade regularly while shaving; then, when finished, apply a gentle, fragrance free moisturizing lotion. Moisturizers that contain aloe are some of the best choices, because they are soothing and non-irritating to the skin. Be sure to choose a moisturizer that will not clog the pores as well.
Another option to prevent bikini line razor burn is to use another method altogether. Waxing or depilatory creams may also be used to remove hair along the bikini line, and these may be less likely to cause razor burn. If the irritation does occur, it may be painful to apply moisturizer; in this case, hydrocortisone cream is a good choice because it will help to calm irritation and heal the skin at the same time. It will also be necessary to stop shaving for a few days while the skin heals; shaving razor burned skin will be quite painful and will just make the issue worse.
In addition, avoid wearing especially tight fitting pants or underwear while the area is healing because the friction could make it worse. When shaving in the future, some recommend using a shaving oil in addition to shaving cream, as well as exfoliating the skin regularly, which can help to prevent ingrown hairs. An exfoliating body wash can be an effective option. This advice applies when shaving the legs as well; it is far better to prevent razor burn in the first place than to try to treat it later.