Psoriasis

Controlled Sun Exposure

Lifestyle
🔬Research

Very strong

2 sources reviewed

👥Community

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Time to effect

4–8 weeks

Effort level

medium

Category

Lifestyle

Typical approach

Habit / practice

How it works

UV radiation slows the rapid skin cell proliferation characteristic of psoriasis and suppresses local immune activation. UVB at 311nm is the most therapeutic wavelength.

Avoid sunburn which can trigger a Koebner response (new psoriasis at sites of skin injury). Fair-skinned individuals need shorter exposure times. Medical phototherapy is more precise and safer than uncontrolled sun exposure.

Why very strong evidence

UV phototherapy is one of the most evidence-supported psoriasis treatments. Narrowband UVB clears psoriasis in 60-70% of patients. Natural sunlight provides similar but less controlled benefit.

Community experiences

AK

Anonymous · 0xa3f2

Tried for 6 weeks

Noticeably less frequent issues after about a month of consistent use. Worth sticking with.

TM

Anonymous · 0xb71c

Tried for 4 weeks

Good results overall. Had to adjust the approach slightly but found what worked for me. Would recommend trying it.

JR

Anonymous · 0xc8a1

Tried for 2 weeks

Some improvement but not as dramatic as I hoped. Might need longer to see full benefit. Still continuing.

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WikiRemedy surfaces community experience, not medical advice. Always consult a qualified health professional.