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The sunlight will irritate the treated area and possibly make the discomfort and redness worse. The easiest way to prevent this is to not expose the treated area to direct sunlight. If you go outside, make sure you cover the area with clothing. If you had your face treated, wear a hat to provide sun protection. Artificial UV sourcessuch as tanning boothsshould also be avoided until the skin has completely healed and all discomfort, swelling, and redness has disappeared. Direct sun exposure should be avoided for a minimum of two weeks after the laser treatment, but some health care providers recommend avoiding the sun for 6 weeks. Use a sunscreen with a SPF of at least 30. Make sure you reapply the sunblock often, especially if you get the skin wet or sweat profusely. Laser treatment works by using heat to destroy the hair follicles; exposing the treated area to additional heat can increase the skin irritation. Hot water, saunas, and steam rooms should all be skipped for a minimum of 48 hours after the treatment. You can bathe the treated area; however, you should stick to cool or warm water to help the area heal as quickly as possible. Raising the body's temperature through exercise can also irritate the treated area. Wait at least 48 hours before strenuously exercising. Milder exercise, such as walking, is okay. Just try to avoid becoming overheated.
Protect the treated area from sunlight. Avoid exposing your skin to heat sources until it has entirely healed. Avoid strenuous exercise for at least 48 hours after treatment.