Conditions of the human integumentary system constitute a broad spectrum of diseases, also known as dermatoses , as well as many nonpathologic states (like, in certain circumstances, melanonychia and racquet nails ).   While only a small number of skin diseases account for most visits to the physician , thousands of skin conditions have been described.  Classification of these conditions often presents many nosological challenges, since underlying etiologies and pathogenetics are often not known.   Therefore, most current textbooks present a classification based on location (for example, conditions of the mucous membrane ), morphology ( chronic blistering conditions ), etiology ( skin conditions resulting from physical factors ), and so on.   Clinically, the diagnosis of any particular skin condition is made by gathering pertinent information regarding the presenting skin lesion (s), including the location (such as arms, head, legs), symptoms ( pruritus , pain), duration (acute or chronic), arrangement (solitary, generalized, annular, linear), morphology ( macules , papules , vesicles ), and color (red, blue, brown, black, white, yellow).  Diagnosis of many conditions often also requires a skin biopsy which yields histologic information   that can be correlated with the clinical presentation and any laboratory data.   
My objective is to ease psoriasis symptoms. I have found something that works for me. I appreciate your opinion but we all know opinions are just like noses everybody has one and some of them stink. (cleaned it up for ya) I have battled P for 4 years now and followed Doctors and Dermatologist recommended treatments. The result has been spending thousands of dollars with no long lasting results. In the mean time I have experimented with all kinds of natural and chemical based creams lotions to treat the psoriasis. I have found some unusual treatments that work and are very economical. None of the medically prescribed ointments, creams and sprays has worked as well as the natural remedies for me.
The tars have been used for years to control skin problems pine tar and coal tar specifically. At the dilute amounts in the commercial preparations maybe years of continuous use you may or may not have a problem. Kind of like the saccharin scandal or compared to steroids witch is safer!
Tell me this, what is not carcinogenic in California? I guess out here on the plains our opinions are different towards many chemicals. I think if you have the right lawyer distilled water would be no doubt become carcinogenic in Califonia!
I am happy that you have found some relief with your penis P
Hello, I’m not sure if I have this, but I’m getting tired of trying to figure it out. So I came across your site when I was googling my symptoms. Anyway, about 8 months ago I became covered with red itchy white flaky rash spots, in my belly button, ears, scalp, under my breast, and my vagina looks just like that picture. I have been to my Primary care doc, Gyno, and a Derm and all they do is give me different creams… I know it sounds crazy but none of these docs are fixing my problem. The creams are working… but when I’m cleared up.. I stop using them and it comes right back… Its wearing me out. What is wrong with me… I feel like I’m full of fungus. Its gotta be something on the inside of my body that’s causing this. If you have any advice, I would appreciate it.