I have excess foreskin. I always masterbate without pulling it back. Now whenever i do, it hurts. I can't put back my penis head easily back into skin. Plus insides are dirty. I can't clean them because it hurts. I have lost that erectness as well. I don't know if some infection is there or not bcz it has lot of yellow pigments. My penis head turns purple if I pull foreskin back and post masterbation it remains like that for long and it takes minutes to get normal. Touching it also is unbearable. Refer photo.