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Regarding your question

how to whiten forehead skin after chronic sun exposure ?

laser based skin whitening method is very effective
Drinking large amounts of water
Proper nutrition and intake of foods containing vitamins
Do not get sun in the afternoon
Stay away from the dry atmosphere
Use oils such as coconut oil or sesame for skin massage
Do not use chemical preparations used to whiten the skin as it contains ammonia and some harmful dyes that harm the skin in the long run
Use moisturizing ointments
in case you wanted to use whitening cream u can use hydroquinon cream but you should avoid the sun exposure
you should not use hydroquinon if you are allergic to sulfate
don't apply hydroquinon near the eyes , or near the prickly heat or after shaving

How is laser skin whitening done?

This process is done through the absorption of light waves specific to the skin to peel layer after layer through evaporation of damaged cells and remove the effects of sun exposure

What are the complications of laser skin whitening ?

Burns or other injuries from laser heat
Scars on the surface of the skin
Changes in skin pigmentation, including areas of darker or lighter skin
Reactivate the underlying viral sores
Bacterial infection
Melia, which is a small white bumps, may appear in laser-treated areas.
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