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What is PUVA? PUVA or photochemotherapy is a type of ultraviolet radiation treatment (phototherapy) used for severe skin diseases. PUVA is a combination treatment which consists of Psoralens (P) and then exposing the skin to UVA (long wave ultraviolet radiation). It has been available in its present form since 1976.
guava â(plural guavas) 1  A tropical tree or shrub of the myrtle family, Psidium guajava. 2  Its yellowish tropical fruit, 1Â¼ to 2 inches, globular or pear-shaped with thin, yellow, green or brown skin, is often made into jams and jellies. The meat is yellowish or pale green to pink in color.  Bulgarian: Ð³ÑÐ°Ð²Ð° f â(guava)