## 3 Ways to Assess Psoriasis Severity and Therapeutic Strategies for Psoriasis Treatment  
Psoriasis, due to its genetic background, remains a chronic and incurable disease characterized by frequent relapses, which necessitates the use of therapy based on an empirical approach [18; 19]. These authors emphasize that the goal of its treatment is primarily to reduce skin lesions and alleviate symptoms, which contributes to prolonged periods of remission. In addition, therapy aims to prevent the onset of complications that can lead to more severe forms of the disease and to improve the patient's quality of life by restoring comfort and function [19].  
Modern therapeutic approaches include a range of methods and regimens with varying efficacy to achieve control over the course of the disease. Primary treatment strategies for psoriasis include topical and systemic therapy, as well as physical therapy, which includes phototherapy and photochemotherapy. There are also complementary, alternative methods, which include dietary, nutritional changes, among others [19; 20] (Table 3).  
\begin{table}
\begin{tabular}{p{113.8 pt} p{227.6 pt}} \hline \hline
**Clinical Form of Psoriasis** & **Characteristics of Changes** \\ \hline Plaque psoriasis & in the course of plaque psoriasis, erythematosus scalp plaques of various sizes are observed, located mainly on the scalp, elbows, knees and lumbosacral region. \\ \hline Pustular psoriasis & present on the skin are small sterile pustules, which are formed by the accumulation of multinucleated leukocytes. Various forms of pustular psoriasis are distinguished depending on the localization of the skin lesions, including a form limited to the hands and feet, a limited diffuse form and a generalized form (von zumbusch generalized pustular psoriasis). \\ \hline Psoriatic arthritis & in 25\% of patients with psoriatic arthritis, joint lesions appear after the onset of skin lesions. is a seronegative inflammation (no rheumatoid factor in the blood serum) various forms of psoriatic arthritis, symmetric polyarthritis, among others \\ \hline Nail psoriasis & thimble nails—small, limited depressions on the surface of the nail about 1 mm in diameter \\ Nail psoriasis & subungual psoriaticapules shining through the plate (oil drop sign) \\  & onycholysis (separation of the free edge of the nail from the matrix, co-occurs with hyperkeratosis) \\ \hline Erythroderric psoriasis & psoriatic lesions cover most of the skin surface \textgreater{}90\% confluent, exfoliative dermatitis with increased exfoliation pruritus of varying severity and elevated body temperature \\ \hline Inverted (flexural) psoriasis & interdigital localization erosive erythematosus plaques and spots \\ \hline \hline \end{tabular}
\end{table}
Table 2: Clinical forms of psoriasis and their characteristics based on [13; 14; 17].  
The choice of the appropriate treatment should be tailored to the presented clinical picture of the disease, taking into account the type of psoriasis and its severity [20]. Thus, the key factor determining the effectiveness of psoriasis therapy is the appropriate classification of the nature of the disease based on the proper physical evaluation of psoriatic lesions by the doctor and the subjective feelings of the patient. The only tools available to make the aforementioned assessment of skin lesions are measurement scales, among which the Psoriasis Area and Severity Index (PASI), Body Surface Area (BSA) and Dermatology Life Quality Index (DLQI) scales are the most commonly used [21; 22] (Table 4).