Suggest Treatment For A Curved Penis

I am a 26 years old male with a curved penis by birth, that curves to the left and downwards. I have a very good erection and my penile length is almost 6-7 inches after erection. I consulted a doctor and have been asked to go for a surgery. Is there any method to correct it without surgery?. How long I should away from sexual intercourse If I go for surgery? I came to know sizegenetics traction device can correct it. is it safe to use?