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Psoriasis Treatment: How Phototherapy and Daily Care Keep Skin Clear

Psoriasis has a way of returning just when you thought it had gone: thick, red or dark patches with silvery scale on the elbows, knees, scalp or lower back. Many people cycle through creams that help for a while and then stop working. The good news is that psoriasis, while long-term, can usually be controlled well, and phototherapy is one of the most effective and safest tools for doing it.

This guide explains what psoriasis is, how it is treated, and what you can do between visits. It is general education and does not replace an examination.

What Psoriasis Is

Psoriasis is an immune-driven condition in which skin cells are produced far faster than normal. Instead of shedding over weeks, they pile up in days, forming raised plaques covered in scale. It is not contagious and is not caused by poor hygiene. It tends to run in families, and the AAD explains what causes psoriasis and why flares happen.

On lighter skin plaques look pink or red; on brown skin they can look dark brown, purple or grey, which sometimes delays diagnosis. Psoriasis can also affect the nails, and some people develop joint pain and stiffness, which should always be mentioned to your doctor.

Psoriasis or Something Else?

Eczema, fungal infections and some other rashes can look similar, and treating the wrong condition wastes months. A fungal infection treated with a steroid cream can spread, for example, as we explain in our guide to fungal infections. The doctor looks at the pattern, the scale and the nails, and occasionally takes a small sample to confirm the diagnosis.

How Psoriasis Is Treated

Treatment depends on how much skin is affected, where the patches are, and how they affect daily life.

• Moisturisers and medicated creams are the first step for limited psoriasis. Your doctor chooses the strength and tells you how long to use each, because some creams thin the skin with long use.
• Phototherapy is the next step when patches are widespread, keep returning, or do not settle with creams.
• Tablets and injections are used for moderate to severe psoriasis or when joints are involved. They need monitoring and are discussed in detail before starting.

How Phototherapy Works

Phototherapy uses a specific band of ultraviolet light, most often narrowband UVB, to slow the overactive skin cells and calm inflammation. Sessions take a few minutes, two or three times a week, in a booth for widespread patches or with a targeted handpiece for smaller areas. Doses start low and rise gradually according to how your skin responds.

Most people notice improvement within a few weeks and need a course of several weeks for good clearance. Side effects are usually mild, such as temporary redness like a light sunburn. The AAD's page on phototherapy for psoriasis covers what to expect. Phototherapy is given under medical supervision and is very different from sunbathing or tanning beds, which are not a safe substitute.

Triggers That Make Flares Worse

• Throat infections and other illnesses.
• Stress and poor sleep.
• Skin injury, including scratching, cuts and tattoos.
• Smoking and heavy alcohol use.
• Some medicines, which is why your doctor asks for a full list.
• Very dry weather or air-conditioning, which dries the skin.

Daily Care Between Visits

Moisturise thick patches at least twice a day, especially after bathing. Use lukewarm water and a gentle cleanser, and avoid scrubbing scale off, which can trigger new patches. Keep nails short to limit scratching damage. For the scalp, medicated shampoos and gentle scale softening work better than picking.

Where to Get Treated

Psoriasis is diagnosed and managed at every Dr. Thaj branch. Phototherapy is available at our Chennai, Coimbatore, Ooty, Thalassery and Kannur clinics, and Thalassery also has dedicated hand and foot units. See psoriasis and eczema treatment in Chennai, Coimbatore or Thalassery.

Final Thoughts

Psoriasis is long-term, but it does not have to control your life. With the right diagnosis, a treatment ladder that steps up only when needed, and good daily care, most people keep their skin clear for longer stretches. The guidance here draws on the experience of Dr. Thaj Laser Skin & Hair Clinic, treating skin conditions in South India since 1998.

Frequently Asked Questions

Can psoriasis be cured?

There is no permanent cure, but it can usually be controlled well. Many people have long periods of clear or nearly clear skin with the right treatment and daily care.

Is phototherapy safe?

Yes, when it is given under medical supervision with doses matched to your skin. Side effects are usually mild, like temporary redness. It is not the same as tanning.

How many phototherapy sessions will I need?

Most people have two or three short sessions a week and notice improvement within a few weeks. A full course usually runs for several weeks.

Is psoriasis contagious?

No. Psoriasis is an immune condition and cannot spread through touch, sharing towels or swimming pools.