Please suggest me a suitable therapy for lower back pain.

Hello doctor,

I am a 38 year old male. Four months back, I was admitted in a hospital for stomach ache. After blood tests, ultrasound and a CT scan, I was diagnosed with liver parenchymal disease, mild umbilical hernia and grade III varices. I have never tasted any type of alcohol or tobacco in my life. The doctor suggested me to go for EVL. I was discharged from the hospital after a week. Again, after 15 days, I was admitted for EVL. I was discharged after two days. During the treatment, backache developed. After a month, when I went back for a checkup, I complained of a continuous backache, which was mild in the day and severe in nights. They hospitalized me again for a further checkup. All tests, including an x-ray, ultrasound and MRI were performed. The orthopedician told me that there is some problem with my L5-S1 on the right side though it is not that severe. He informed me that I just need exercise. I was discharged after four days. I am still suffering from backache. Whenever I am passing stool, I get backache. I cannot stand straight because of pain. The pain starts from the lower back and goes to both the sides. I also have pain around navel area and that is going down to the penis. I have a history of fatty liver. I am currently taking Pan 40, Udiliv 300 and Lasilactone.