Pityriasis versicolor (PV) is a skin disease. It is a superficial mycosis, benign, due to yeast called Malassezia, part of the normal flora (saprophyte or commensal) of every human being, since he is an infant. It lives mainly in the pilosebaceous follicle. This yeast is said to be lipophilic because its growth requires the presence of fatty acids […]