I have been diagnosed with AS a form of rheumatoid arthritis, I have injecting myself 1 time a week with Embrel for the past 10 weeks, in the last 3 - 4 weeks I have noticed a red blotchy/blister type rash on my legs, thighs, arms, face and my scalp has bumps on it aswell, after a period they form a silvery type scale on them, I have never suffered from any type of skin rash. my question is has the Embrel caused a psoriasis type rash side effect?