Can you tell me is it bad that i've popped the blissters from posion ivy and puss is coming out?

Yes: Never pop blisters caused for any reason. There's a reason your body created them. And the pus is the reaction. You've now caused a skin infection and most likely, caused a permanent scar where you popped it. You need to clean the area with gentle, non-perfumed soap and water. Then you need to see a doctor for evaluation and possible antibiotics.