Laser treatments can repair sun damaged skin; remove tattoos, birthmarks and spider veins; and correct minor facial imperfections like fine lines. Laser therapy is also used to remove unwanted hair and slow its re-growth. Laser eye surgery (LASIK) can correct vision and eliminate the need for glasses or contact lenses. Though major strides have been made in laser therapy in the last couple of decades, it is not without the risk of side effects.
Sunburn-Like Effects
Laser resurfacing can leave your skin raw and looking like you have serious sunburn. The Mayo Clinic says crusting, scabbing and in rare cases blistering are possible following laser treatments. These side effects are only temporary but it's important not to pick at the scabbed area or permanent scarring can result. There may be some pain following a laser treatment, but since no cutting of the skin is involved, over-the-counter pain relievers usually suffice.
Pigmentation Changes
Temporary skin color changes in the treated area are possible following laser therapy. Patients may experience hyperpigmentation, which is a darkening of the skin, or hypopigmentation, which causes the skin to become lighter. In rare cases brown or white marks can be permanent.
Hair Removal Reactions
Laser treatment for hair removal can cause its own set of side effects. The American Academy of Dermatology says adverse reactions can include swelling, which is caused by excessive fluid around the hair follicle. Redness and inflammation, known as erythema, may last for 24 to 72 hours following treatment. Bacterial infections and blistering may also occur. Some patients report that when new hair grows in it is finer and lighter in color before.
Vision-Related Side Effects
You may not be able to see clearly for a few days following laser eye surgery. Common side effects include halos, blurriness and poor night vision. These symptoms typically fade after a few weeks. However in some cases follow-up surgery may be needed to correct these adverse reactions.
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