Final answer:
Psoriasis is an autoimmune disease causing thick, red patches of skin, often mistaken for excess oil production related conditions such as acne, which actually involves clogged pores due to oil and bacterial infection. Eczema is another distinct skin disorder characterized by a red, flaky rash.
Step-by-step explanation:
The skin condition characterized by excess oil production that causes redness, flakiness, and irritation is known as psoriasis. Psoriasis is a chronic autoimmune disease that affects the skin, resulting in itchy or sore patches of thick, red skin covered with silvery scales. These patches often appear on areas like elbows, knees, scalp, back, face, palms, and feet. Contrary to this description, another common skin disorder is acne, which arises when pores are clogged with sebum and dead skin cells, often leading to redness and potential scarring.
Acne is commonly due to the overproduction of oil by sebaceous glands particularly during puberty, but it can also persist into adulthood. The condition may be exacerbated by bacteria such as Propionibacterium and Staphylococcus. Unlike psoriasis, acne primarily involves the clogging of pores and subsequent bacterial infection, whereas psoriasis is a result of an autoimmune response that accelerates the skin's life cycle.
Other skin disorders include eczema, a red, flaky rash that represents an inflammatory response, and conditions like seborrheic dermatitis, cold sores, impetigo, scabies, hives, and warts, which have various causes and effects on the skin.