Creams and ointments that contain salicylic acid can loosen and 'lift' the scales of psoriasis from your skin or scalp. But there hasn't been much research to show whether they help.
We found one small study that looked at people who used salicylic acid for three weeks. There wasn't much evidence that the cream helped. But doctors agree that salicylic acid can work. They sometimes use it with other treatments for psoriasis.
You might get some skin irritation if you use salicylic acid.
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