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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.
Pu, a Hawaiian conch shell, is a large seashell played like a ceremonial fanfare trumpet. Made of two kinds of large shells, Triton or Cassis cornuta, it is capable of emitting a loud sound carrying as far as two miles. The volume depends on the style of blowing rather than breath volume capacity.