phototherapy

noun
UK /ˌfəʊtəʊˈθerəpi/
US /ˌfoʊtoʊˈθerəpi/

Phototherapy is a way to treat sickness using special light.

The baby with jaundice was placed under a blue light for phototherapy.


OTHER MEANINGS

2. Treatment of newborn jaundice using blue light to break down bilirubin.

Doctors used phototherapy to help the newborn's yellow skin fade.

3. Light-based treatment for skin conditions such as psoriasis or eczema.

Her psoriasis improved after several weeks of phototherapy.

4. A type of therapy in which a person sits in bright light to treat seasonal sadness.

He uses a light box for phototherapy during dark winter months.