What is psoriasis?
In psoriasis, an overactive immune system speeds up skin cell growth. Cells build up faster than the skin can shed them, forming thick, scaly patches called plaques. Psoriasis is not contagious. It tends to come and go, with flares and calmer periods.
Common symptoms
- Raised red or discolored patches covered with silvery-white scale
- Itching, burning or cracked skin that may bleed
- Scalp scaling that looks like heavy dandruff
- Pitted, discolored or crumbling fingernails and toenails
- Joint pain or stiffness, which can be a sign of psoriatic arthritis
Common triggers
- Strep throat and other infections
- Stress
- Skin injuries such as cuts, scrapes and sunburn
- Certain medications, including some blood pressure medicines and lithium
- Smoking and heavy alcohol use
- Cold, dry weather
How we treat psoriasis
Treatment depends on how much skin is involved, where the plaques are and how psoriasis affects your daily life. Options include:
- Topical corticosteroids, vitamin D creams and other prescription topicals
- Medicated shampoos and scalp treatments
- Oral medications for moderate to severe disease
- Biologic injections that target the immune pathways driving psoriasis
- Referral for phototherapy when it is the best fit
Frequently asked questions
Is psoriasis contagious?
No. Psoriasis is an immune condition and cannot be passed to another person.
Can psoriasis be cured?
There is no cure yet, but many patients reach clear or almost clear skin with the right treatment and regular follow-up.