Psoriasis – Diagnosis and treatment – Mayo Clinic

Avoid psoriasis triggers. Notice what triggers your psoriasis, and take steps to prevent or avoid them. Infections, injuries to your skin, stress, smoking and intense sun exposure can all worsen psoriasis. Avoid drinking alcohol. Alcohol consumption may decrease the effectiveness of some psoriasis treatments. If you have psoriasis, avoid alcohol.

https://www.mayoclinic.org/diseases-conditions/psoriasis/diagnosis-treatment/drc-20355845