It occurs due to acceleration of the renewal time of the skin cells. It is an autoimmune chronic inflammatory disease. Its incidence in the population is 1-2%.
It is classified as Type I and Type II according to the age of its onset.
Type I occurs at an earlier age. There is a genetic transition and indicates that the disease may be more severe. Clinically, the classic type of psoriasis is characterized by lesions covered with white dandruff, which are located on a sharp-bound erythematous ground.The lesions are symmetrically located around the knee, elbow, lumbosacral region, scalp and belly.
In psoriasis, the fingernails are involved in 50% and the toenails in 35% of the cases. Sometimes psoriasis (P.inversa), which does not produce scaling on the skin can be confined to the armpits and pubic areas. Psoriasis Guttata (Eruptive type ), which is seen mostly in children, is characterized with small erythematous squams measuring 0.5 - 1 cm. Streptococcal upper respiratory tract infections play a role in the emergence of this type psoriasis.
There are also special forms of psoriasis:
1-Psoriatic Erythroderma: It is a generalized, severe form of psoriasis involving the whole body surface.
2-Pustular Psoriasis: This form is divided into localized and generalized subtypes.
Before starting the treatment, the patient should be informed about his/her disease. Encouragement and support to the patient is an important part of the treatment.
Local Therapies: Skin skin dryness is an undesirable condition skin should be moistened.
- Vitamin D3 and its analogues
- Topical corticosteroids
If the disease is resistant to widespread active and local therapies, then systemic treatments are started which include;
If there is resistance to these, biological treatments in step 3 come to the agenda.