Can a MRSA skin infection cause Blisters? What kind? Can they itch? What is color of the fluid drainage?

MRSA can cause a lot of big, red, fluid-filled blisters, which can drain clear or yellow-tinged fluid. The blisters don't itch themselves but where the drainage touches the skin itches. No matter if it's MRSA or a spider bite (and personally I'm thinking she has a spider bite), she needs antibiotics and possibly something that will pump up her white count to help fight the infection. And then there is the big possibility that what started as a spider bite has now been infected with the MRSA bacteria, especially in view of her leukemia. This is serious; somehow get her back to the doctor or the ER.