👉 Psoromatomyces is a type of fungus that produces a variety of fungi, including psoriatic psoriasis. It is also known for its ability to produce a thick, sticky substance called "psoroid." This substance can be found in the skin and can cause itching and redness when touched. Psoromatomyces are commonly found in areas with a high risk of developing psoriatic disease, such as the scalp, knees, and elbows.