Hello dear Understand your concern Treatment of erectile dysfunction is depend on the cause of it. So first we have to find the causes behind that. Following are the causes of erectile dysfunction: Diabetes, Prostate Enlargement, psychological like Excessive stress and relationship issues, alcohol & tobacco consumption (constriction of penile blood vessel), obesity, Problems in low back nerves, Hormone problem like Low testosterone levels. So first consult the best urologist and get the following test done: Blood tests:Hb,CBC, ESR, blood sugar, lipid profile, urea, creatinine, Vitamin B12, folic acid levels iron, etc.Hormones (total and free testosterone, corticosteroids, DHEAS, Thyroid hormone, seminal fluid analysis, Doppler USG of scrotum and penile area to find out the blood flow problem. Meanwhile take following advice: Start exercising (60-80 minutes in morning with relaxation and yoga), losing weight, stopping smoking and alcohol, Healthy diet with proteins and vitamin A, C, E. Take anti oxident like CO Q, More fore play before sex will lead to more excitment, Do discussion with your partner that help in gaining psychological trust, use more than one condom, try women on top position. If problem persists then Tablet viagra and paroxentine about one hour before sexual activity after proper evaluation Testosterone shot for low testosterone Hope this may help you Best regards Dr. Sagar