What Is The Cause And Treatment For Psorasis?

sir i was first caught by cold i visited dr he prescribed me medicines i was cured bt i started developing red patches on sin it is tested and confirmed as psoriasis i am aping medicines prescribed by dr but on getting net in formation i fond steptrococss bacteria is the cause of all so i took antibiotic augmentin bt i am feeling sti my chest and thought is not clear i A m feeing very weak