I have faced sometimes erection issue during sex. is there any permanent treatment ?. i didn't want to use any sex booster tablets like viagra etc?

There are clinics that treat erectile dysfunction without drugs ,seek a clinic that doesn't use pills or drugs .Stress can also cause dysfunction.

With erectile dysfunction (ED), first see a urologist, as there is treatment available for some resulting from vascular obstructive issues. Hormonal decreases can be treated by supplementation of testosterone where indicated. There are surgical implants which are effective when other treatments fail.