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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.
Pua is Moanaâs loyal pet pig with puppy energy and an innocent puppy brain.. 1  Pua's name is derived from the word puaka, which refers to pig and pork in some Polynesian languages.  Pua was originally going to appear in the third installment of Disney INFINITY as a mount.