Psoriasis is a chronic and non-contagious disease consisting of red and scaly patches of different sizes on friction or exposed skin areas such as the scalp, knees, elbows and the trunk. Our Dermatologists are experts in treating any type of psoriasis in London and use many different types of procedures and treatments. Ask for a consultation and we will try to examine and evaluate your psoriasis and propose a treatment plan.

What is psoriasis?

Psoriasis is a skin disease that consists of red plaques covered by white or gray scales. It is chronic and lasts for years and usually appears in youth or adulthood. Psoriasis plaques appear on cutaneous areas exposed to friction or trauma, such as the elbows, knees, the back or buttocks.

Generally, psoriasis plaques only affect the skin. However, nails can also be affected, palms and soles may show a special type of Psoriasis called Pustulosis. The scalp is another area that suffers from Psoriasis in some patients.

What causes psoriasis?

Psoriasis is a genetic disease and is triggered by trauma or friction to the skin. The turnover of the skin is tremendously accelerated. The epidermis of the skin usually takes 30 days to renew completely whereas in psoriasis this happens in less than one week.

This is the reason why psoriasis characteristically develops on sites of trauma and not on protected areas of the skin such as the armpits, groin, or flanks of the trunk.

Clinical signs and symptoms in Psoriasis

The most frequent signs of psoriasis are:

Red squamous plaques on the skin

The most common lesion is a red plaque covered with thick scales or scaly erythematous plaques. There are no other general symptoms such as fever or pain. These plaques a very well demarcated and there is a clear cut limit between healthy skin and affected skin.

Dandruff and scaly scalp

Psoriasis also affects to the scalp. In this case there is itchiness, scaliness and resistant to treatment dandruff. The scales involve hair roots and cannot be removed with normal shampoos.

Inverted psoriasis

In some cases, psoriasis plaques appear in the armpits, in the groin or in the gluteal fold. This type of psoriasis is called inverted psoriasis and is due to friction between surfaces of skin rather than exposure to rubbing or trauma with external materials like clothes, tables or sitting.

Nail psoriasis

Occasionally, psoriasis affects the nail producing small depressions called pitting, yellowish areas of the nail called oil spots and white plaques (leukonychia) affecting the distal part of the nails. This is called nail psoriasis and is often confused with fungal infection. The way to distinguish this is the location: whereas fungus affects mainly the first two nails and very rarely the finger nails, Psoriasis affects the fingernails much more, especially in the right hand.

Diagnosis of psoriasis

The diagnosis of psoriasis is clinical, that is, the observation of clinical signs and lesions in characteristic places allows a well trained dermatologist to make the diagnosis without the need of a skin biopsy.

On some occasions, a skin biopsy can be performed to determine whether or not the patient is suffering from psoriasis.

When psoriasis affects the joints (3-5% of patients), it is known as arthritic psoriasis and a blood test may be necessary to study the degree of involvement of the patient.

Treatment prices in London

The price of treating psoriasis in London is:

A single payment


Program for less than 10 psoriasis plaques all inclusive.


  • Dermatology consultation
  • 4x Triamcinolone infiltration
  • 4x Red photodynamic therapy (635nm)
  • 4x Er:YAG laser session

A single payment


Program for more than 10 psoriasis plaques all inclusive


  • Dermatological consultation
  • 4x Triamcinolone infiltration
  • 4x Red photodynamic therapy (635nm)
  • 4x Er:YAG laser session

Pay for individual sessions

Price according to session

If you do not prefer to select a treatment pack, you can book individual sessions.


  • Dermatological consultation


  • Infiltration of 1 to 3 plaques


  • Infiltration of 4 to 10 plaque


  • Infiltration from 11 to 50 plaques


  • Red photodynamic therapy (635nm)


  • Er:YAG laser session



Prevention and control of psoriasis

To prevent the development of new psoriasis plaques, it is important to minimize the trauma that may injure the skin. Trauma to the skin such as resting your elbows on a table, kneeling on the floor, seating for a very long time, should be avoided. It is also important to be able to go to the beach frequently and receive sunlight. In our dermatology clinic in London we also have special moisturizing creams for psoriatic patients and daily use.

Frequently asked questions from our patients

The most frequently asked questions about psoriasis are:

Yes. Infiltrations can be painful. The laser and photomodulation are not though. Therefore, the patient is encouraged to ask for the application of topical anesthesia before the treatment. Patients can arrange for this by scheduling an appointment a little earlier and having some anesthetic cream applied 15 to 20 minutes earlier.
No. It is not contagious. Psoriasis has nothing to do with an infectious disease. It is only genetic and triggered by certain factors such as trauma, scratching or rubbing of the skin.
Yes. It is a benign disease that does not prevent the patient from leading a normal life. You are encouraged to follow normal life, do normal sports, meet your daily friends and join all types of activities. You have, nevertheless, to be careful with trauma on the skin. For example, boxing might help in inducing psoriatic plaques on the knuckles of your hands.
Yes. If you have psoriasis, it is very probably that the disease was also present in your ancestors or you children. Not all family members are affected with psoriasis but there is a very clear family trend.