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Does phototherapy get rid of psoriasis?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I am reaching out regarding my 39-year-old husband. His psoriasis started six years ago and now affects his scalp, elbows, and lower back. His recent lab reports show a mild increase in ALT (45 U/L) and slightly low Vitamin D levels (20 ng/mL). He has been using OTC treatments, but they no longer help. Should we consider phototherapy or other drug options like Methotrexate, given his lab results?

Kindly help.

Thank you.

Hello,

Welcome to icliniq.com.

I understand your concern.

Elevated ALT (alanine aminotransferase) levels can be due to mild liver stress, which warrants careful consideration when prescribing systemic treatments like Methotrexate, which is metabolized in the liver.

Low vitamin D levels (20 ng/mL) may exacerbate psoriasis severity, as vitamin D plays a role in modulating the immune response and skin health.

Since OTC (over-the-counter) medicine is no longer effective, it is appropriate to explore advanced therapeutic options. Phototherapy is a safe and effective choice, especially for localized or moderate psoriasis. It uses ultraviolet light to reduce inflammation and slow the rapid growth of skin cells, providing relief without systemic side effects.

Methotrexate is an effective systemic treatment for psoriasis, but due to its potential hepatotoxicity, it requires careful monitoring of liver function.

Regular liver function tests, including ALT (alanine aminotransferase) and AST (aspartate aminotransferase), and possibly a liver biopsy if used long-term, are essential.

Alternatively, biologics such as Adalimumab or Secukinumab may be safer options for his liver profile, as they target specific inflammatory pathways without significant hepatic metabolism.

Correcting vitamin D deficiency can improve psoriasis and overall health. Under medical supervision, a daily supplement of 2,000–4,000 IU of vitamin D3 is recommended to bring levels to an optimal range of 30–50 ng/mL. Dietary sources, such as fatty fish and fortified foods, along with moderate sun exposure, can further support this correction.

Consulting a dermatologist is crucial to tailor a treatment plan. Incorporating stress management, a healthy diet rich in anti-inflammatory foods, and routine monitoring of liver and vitamin D levels will enhance outcomes.

I hope this helps.

Kindly follow up if you have more concerns.

Thank you.

Medically reviewed byiCliniq medical review team

Published At December 20, 2024
Reviewed AtJanuary 6, 2025

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