Quick read
Key points
- 1
Psoriasis is a long-term skin condition in which skin cells build up too quickly, forming raised, scaly patches known as plaques. It's caused by an overactive immune response and commonly affects the elbows, knees, scalp, and lower back, though it can appear anywhere.
- 2
Recognise psoriasis, support appropriate treatment and identify psoriatic arthritis and severe flares.
- 3
Patches are widespread, painful, or significantly affecting your daily life
01 · Know
What is Psoriasis?
Psoriasis is a long-term skin condition in which skin cells build up too quickly, forming raised, scaly patches known as plaques. It's caused by an overactive immune response and commonly affects the elbows, knees, scalp, and lower back, though it can appear anywhere.
Psoriasis can range from a few small patches to widespread involvement, and often follows a pattern of flare-ups and remission. It can also be associated with joint inflammation (psoriatic arthritis) in some people.
02 · Understand
Clinical context
Self-care advice
See your GP or a dermatologist if psoriasis is widespread, painful, or not responding to over-the-counter treatments.
03 · Act
When to see a doctor
- 1Patches are widespread, painful, or significantly affecting your daily life
- 2You notice joint pain, stiffness, or swelling alongside skin symptoms
- 3Current treatment isn't controlling your symptoms adequately
- 4Skin becomes infected, cracked, or bleeds
- 5Psoriasis is affecting your mental health or confidence
04 · Prevent & manage
Practical steps
Take these self-care steps
These measures can help ease symptoms, support recovery, and reduce the chance of things worsening — but they don't replace medical advice if symptoms are severe or persistent.
- 1Moisturise regularly.Applying emollients frequently helps reduce scaling and discomfort from dry, thickened skin.
- 2Use prescribed topical treatments consistently.Steroid creams or vitamin D-based treatments often need regular use to control flares effectively.
- 3Get moderate, safe sun exposure.Some people find sunlight helps their psoriasis, though sunburn should always be avoided.
- 4Manage known triggers.Stress, certain medications, skin injury, and infections can all trigger flares — identifying your own triggers helps with management.
- 5Avoid scratching or picking at plaques.This can worsen irritation and increase the risk of infection.
Evidence
References
BarnMD Health Intelligence uses authoritative and clinically relevant sources appropriate to the topic. References are shown so readers can inspect the evidence directly.
- NHS: Psoriasis ↗
Medical information notice
Health education, not individual medical advice
BarnMD Health Library provides general health education for public health literacy. Reading this article does not establish a doctor-patient relationship and this information is not a diagnosis, prescription, or personalised treatment plan. If you have symptoms or concerns about your health, seek appropriate advice from a qualified healthcare professional. If you develop emergency warning signs, seek urgent or emergency medical attention.
BarnMD Bottom Line
Psoriasis is a long-term condition, but a combination of skincare, topical treatment, and trigger management helps most people keep it well controlled.
Consistent use of prescribed treatments, even during quieter periods, helps prevent flares from becoming more severe.