Psoriasis: Overactive skin cells

Psoriasis results from a dysfunction of the immune system and is characterized by the appearance of thick red plaques of dry skin. This non-contagious disease causes unpredictable flare-ups and varies a great deal from one person to the next.
 
Symptoms
Although there are many types of psoriasis, the most common is plaque psoriasis. It can be characterized by red, well-defined plaques covered with thick silvery white scales that detach from the surface of the skin, generally affecting the knees, elbows, scalp and trunk.
 
This unpredictable skin condition can affect people of all ages. In addition, symptoms can appear for three or four months, disappear for several months – even years – and then reappear.
 
Other skin conditions, such as eczema, can present similar symptoms. Do not hesitate to consult a health professional if you have any concerns on this subject.

Causes
Normally, skin cells reproduce at an even pace to ensure the constant renewal of the epidermis. But in the case of psoriasis, healthy skin produces too many new cells, which raise the skin. As a result, the superficial layers of cells do not receive any blood, die and form a white, scaly crust.

Many factors can cause the onset of plaques:
  • Heredity
  • Stress
  • Prolonged exposure to the sun
  • Excessive alcohol consumption
  • Reaction to a medication.
Treatment
Since psoriasis cannot be cured, treatment options and prevention measures aim mainly at reducing the intensity of the symptoms.

Topical creams, ointments and lotions
Products containing cortisone, tar or immunomodulators, as well as other types of formulations can be used to reduce symptoms. Moisturizing creams can also help ease the discomfort of psoriasis. Talk to a health professional to find out which product is best for you.

Exposure to ultraviolet rays
Exposure to UV rays, especially UVBs, is thought to be beneficial.

Systemic treatment
There are also prescribed oral or injectable medications. These drugs are reserved for more serious cases.
 
Here are a few tips for people suffering from psoriasis.
  • Identify the irritants and allergens that trigger psoriasis flare-ups and try to avoid them.
  • Manage the humidity level in your home.
  • Keep skin slightly damp.
  • Avoid scratching affected areas.
  • Wear clothing that lets skin breathe.
Psychological and emotional factors, such as a major stressful event, family conflicts or the loss of a loved one play an important role in psoriasis flare-ups. People with psoriasis should therefore practise relaxation activities or seek professional counselling to better understand and manage their stress.

In-store health services
Do you have questions about psoriasis and its treatment? Ask your pharmacist. He’s there to help!

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