UVB Therapy: How It Works, Benefits & What to Expect

UVB therapy is a type of light treatment that uses ultraviolet B rays to calm skin problems. It’s often recommended for conditions like psoriasis, eczema, and vitiligo. The light helps slow down the rapid growth of skin cells, which reduces redness and itching. Most clinics have a special booth where you stand or sit while the UVB lamps shine on the affected areas.

Why Doctors Choose UVB Phototherapy

Doctors prefer UVB because it targets the skin without needing strong chemicals or steroids. The treatment can be adjusted to fit each patient’s skin type, so the dose is exact and the risk of burns stays low. Studies show that regular sessions can clear up plaques in psoriasis within weeks, and many patients report smoother skin after a few months.

Another plus is that UVB works on more than one condition. If you have both psoriasis and mild eczema, the same session can help both. It’s also a good option when topical creams stop working or cause side effects.

Getting Ready for Your First Session

Before you start, your dermatologist will check your skin type and decide the right UVB dose. You’ll likely need a prescription and a short medical history. On the day of treatment, wear loose, comfortable clothing that can be easily removed from the area you’ll expose. Most clinics ask you to avoid sunscreen on the treatment area because it blocks the light.

During the session, you’ll stand or sit in the booth for a few minutes while the lamps turn on. The therapist will watch the timer and may adjust the exposure based on how your skin reacts. You might feel a warm sensation, but it shouldn’t be painful. After the lights turn off, you can get dressed and go about your day.

Most people need two to three sessions per week for the first month, then the schedule tapers off as the skin improves. Consistency is key – skipping appointments can slow progress. Your doctor will track your response and tweak the dose if needed.

Safety tips are simple: protect any unaffected skin with clothing or a special shield, follow the therapist’s timing, and report any burning or excessive redness right away. Long‑term UVB use does carry a small risk of skin aging, so regular skin checks are recommended.

If you’re curious about cost, many insurance plans cover phototherapy when a doctor writes it in. Some clinics also offer package deals for multiple sessions, which can lower the out‑of‑pocket price.

Overall, UVB therapy is a practical, drug‑free way to manage stubborn skin issues. Talk to your dermatologist to see if it’s a good fit for you, and you might find relief faster than you expect.