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Phototherapy, Explained

by Andres Jimenez | July 14, 2022
Phototherapy is a type of treatment that uses light to help improve a person's health. This type of therapy has been used for centuries, and there are many different applications for it. In this post, we will discuss what phototherapy is, what it is used to treat, the advantages and disadvantages of phototherapy, and more!

What is Phototherapy?

Phototherapy, also known as light therapy provides exposure to light that is brighter than the surrounding environment. The phototherapy treatments use different types of light sources, including full-spectrum light, fluorescent light, and LED lights. The phototherapy treatments can be done in a doctor's office, at home, or in other settings.

What is Phototherapy Used to Treat?

There are many different conditions that phototherapy can be used to treat. Some of the most common conditions include:
  • Psoriasis
  • Eczema
  • Vitiligo
  • Acne
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There are many other conditions that phototherapy can be used to treat, and the list above is not exhaustive.

How does Phototherapy Help to Treat the Most Common Conditions?

Let's take a more in-depth look at how phototherapy can help to treat some of the most common conditions.


Psoriasis is a chronic skin condition that causes the skin to produce too much of a protein called keratin. This protein build-up leads to the formation of scaly, itchy patches on the skin. Phototherapy can help to treat psoriasis by slowing down the production of keratin.


Eczema is a chronic skin condition that causes the skin to become inflamed and irritated. Phototherapy can help to treat eczema by reducing inflammation and promoting healing.


Vitiligo is a condition that causes the loss of pigmentation in the skin. Phototherapy helps to treat vitiligo by stimulating the production of melanin, which is the pigment that gives skin its color.


Acne is a common skin condition that is characterized by the formation of pimples, blackheads, and whiteheads. Phototherapy can treat acne by reducing the inflammation and bacteria that contribute to this condition.

Why do People Use Phototherapy?

There are many reasons why people might choose phototherapy as a treatment option. Some of the most common reasons include:
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What Are the Advantages of Phototherapy?

In addition to the reasons listed above, phototherapy also has a number of other advantages. Some of the most notable advantages include:
  • It is a safe treatment option for all ages
  • It can be used to treat a wide variety of conditions
  • It is a relatively short treatment option

What Are the Disadvantages of Phototherapy?

While phototherapy does have many advantages, there are also some disadvantages to this type of treatment. Some of the most common disadvantages include:
  • It can cause skin irritation
  • It can cause eye fatigue or discomfort
  • It can make psoriasis worse before it gets better
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As you can see, phototherapy can be used to treat a wide variety of conditions. Overall, phototherapy is a safe and effective treatment option for a wide variety of conditions. If you are considering phototherapy as a treatment option, be sure to discuss it with your doctor to see if it is right for you.

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