Do I have psoriasis? (Photo)

I wanted to know if i have psoriasis. I had it for a while now. I think it is psoriasis but im not sure. The symptoms is dryness, flakiness, peeling, small bumps, thickness, redness or itching etc. the area i have is not so dry there, and what i have is not flaky, doesnt get so red, not itchy, or not think. I dont feeling anything. Its just there. If it is psoriasis, what should i do?

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