The best way to treat a Nair burn is by rinsing the area with cold water for several minutes. You can also use some cold compresses to help soothe the skin. Thin layer of ointments such as Aloe vera or petroleum jelly can also be applied on the burn, apply a thin layer . If the burn is severe, you may need to seek medical attention. In some cases, prescription medications may be needed to relieve pain and reduce inflammation.