heliotherapy
/ˌhiːlioʊˈθɛrəpi/
noun
- The use of sunlight to treat medical conditions, such as skin disorders or vitamin D deficiency.
- Heliotherapy must be done carefully to avoid sunburn and skin damage.
- Doctors sometimes recommend heliotherapy for patients with certain types of psoriasis.
- Before modern medicine, heliotherapy was a common treatment for tuberculosis and rickets.