Not erections but fucking was sometimes troublesome.
At first I didn't know if it was the frenulum or the foreskin being too tight. I didn't want a circumsicion and I didn't want to get a scalpel used on my cock, if I could avoid it, so first I tried cortison creams, and when that didn't help, I searched until I found the best urologist in Sweden and one of the very few performing this surgery with laser.