3.  exact cause unknown  defect of the skin that impairs its function as a barrier, combined with an abnormal function of the immune system, are believed to be important factors.  Some forms of eczema can be triggered by substances that come in contact with the skin, such as soaps, cosmetics, clothing, detergents, jewelry(contact dermatitis)

4.  common in infants  often have a family history of the condition or allergic conditions as asthmaor hay fever.(atopyasthmahay fever

5.  Itching  Dry reddened skin  Blisters/oozing

6.  Adults/children- insides of the elbows, knees, and ankles.  In infants - face

7.  Steroids –local  Antihistamines for itching

9.  Psoriasis A chronic inflammatory skin disease characterized by dry pink scaling round patches. Cause unknown Genatic and env

10. Disorganized Neutrophil accumulation Immaturity Proliferation

11.  Erythematous, raised patches with silvery scales  Symmetric  Pruritic/ Painful  Pitting Nails  Arthritis in 10-20% of patients  Sites-extensor surfaces of knee/elbow

14.  Chronic plaque psoriasis  Erythrodermic  Guttae psoriasis  Nail pitting  pustular

15. 15

16. 16

17. 17 Nail changes

18. 18 Guttate Psoriasis

19. 19

20.  Difficult to cure  Moisturizers  Corticosteroids  Tar/ vitamin D 3  Drugs for itchinh

22.  Adolecence  Emotional stress  Androgens  Family history

23.  Plugging of the hair follicle w/ abnormally keratinized cells  Androgen-induced sebaceous gland hyperactivity  Proliferation of bacteria  Inflammation

24.  Local applications  Antibiotics  Oral drugs

26. 26

27. 27

28.  Mostly by an allergic reaction  Acute urticaria can be treated with antihistamones