Shave your legs only every two to three days and shave only with lubrication in the direction of hair growth. "Razor burn" bumps usually happen because you don't give the skin a break from being scraped, and because hair is pulled in the wrong direction as you cut it.
Sterilize your razor after every shave. Bacteria that grows on razors can cause skin infections that show up as bumps or rashes.
Practice good general hygiene and exfoliate regularly with a cleansing scrub or bath loofah. This will get rid of dirt, bacteria and dead skin that can clog follicles and pores on the legs or cause infection.
Stop or at least limit your use of skin care products that contain chemicals, dyes and perfumes. Many people have skin that is sensitive to these items and break out when they use such products.
Apply a moisturizing agent such as lotion with aloe vera. Sometimes leg bumps happen because your skin is tough enough to make it difficult for shaved hairs to push back through.
Use an antiseptic or antimicrobial agent. This may help clear up any leg bumps caused by fungi or bacteria. A great home remedy option for this is lemon juice.
Wear looser clothing. Bumps sometimes develop on the legs because clothing is tight enough to hold sweat, dirt and bacteria against the skin. Tight clothing also can rub against the hair of your legs and irritate the follicles.
Watch your diet and keep it balanced. You won't break out and get leg bumps just from eating pizza, but your diet influences all physiological processes in the body and keeps your immune system strong. If you are deficient in the necessary vitamins, minerals and nutrients, it is much harder to fight off the infections and diseases that sometimes cause leg bumps. Additionally, some people have food allergies that manifest as skin rashes.
See your doctor or dermatologist. There are dozens of skin conditions that cause bumps, such as viral infections, lice or insect bites and eczema. Even out-of-whack hormones can cause skin problems. Only a professional can diagnose these issues properly. Once you've been diagnosed, your doctor or dermatologist can give you oral medications or topical creams that should alleviate or eliminate your bumps.