Why does psoriasis worsen or recur in winter?

Psoriasis may worsen or recur in winter. This is due to the decrease in temperature and sweat elimination in winter, which will lead to the decrease of toxin excretion in the body. Patients will exercise less during this time, which will easily reduce the immunity of the body and will also cause psoriasis to recur. It is recommended that patients keep their skin clean and eat light foods.