Is injecting corticosteroids effective for treating psoriasis?

Psoriasis may experience certain short-term improvement from local steroid injections (commonly known as "closed needle" treatment), but this method is generally not recommended for treating psoriasis. The "closed needle" treatment mainly involves local injection of corticosteroid medications to achieve analgesic, vasoconstrictive, and anti-inflammatory effects, but its long-term efficacy is unsatisfactory. Once the treatment is discontinued, psoriasis may relapse, and significant "rebound phenomenon" and "hormone dependency" might occur, leading to recurring symptoms that may progressively worsen. Additionally, local steroid injections may cause various side effects, such as reduced resistance to infections, delayed wound healing, and potential induction of hypertension, psychiatric disorders, osteoporosis, and other health problems. Therefore, it is recommended to use standard, medically approved treatments for psoriasis.