How does phototherapy work in treating psoriasis?

Doctor's Answer

Phototherapy involves the use of ultraviolet light to treat skin diseases. This can be used to treat a number of skin conditions including psoriasis, eczema and vitiligo.

In psoriasis, narrow-band ultraviolet B (NBUVB) light is most commonly used to treat psoriasis. NBUVB suppresses the immune cells and activity in the skin. Psoriasis is due to increased immune activity in the skin, which drives the inflammation and hyper-proliferation of the skin. By suppressing the skin immune response, psoriasis can be controlled.

Side effects of phototherapy can be divided into acute or chronic side effects. The acute side effects include the risk of tanning and sunburn. Chronic side effects include skin ageing and skin cancer. Overall, phototherapy is a fairly safe and effective treatment option for psoriasis.

Ask any health question for free

I’m not so sure about a procedure...

Ask Icon Ask a Question

Join Human

Sign up now for a free Human account to get answers from specialists in Singapore.

Sign Up

Get The Pill

Be healthier with our Bite-sized health news straight in your inbox