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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.
Pus is a viscous substance that is a part of the bodyâs natural immune response system. It is most often whitish-yellow in color, although it may also be greenish, brownish, reddish, or even blue. Pus often has a somewhat necrotic smell, and is often the sign of an infection when found in a wound.