If you're trying to fight off the itchy patches that come with psoriasis, you're probably no stranger to creams, gels, and ointments. There are lots out there, but one of the strongest weapons in your arsenal is something called a topical corticosteroid. It can control the inflammation that makes your skin look puffy and red.
"Topical" is just a fancy word for something you put on your skin. You can't buy a corticosteroid like that without a prescription from your doctor. The two of you will work together to find the strength and dose that works best for you.