My Husband Is 73 Years Old, Has A Enlarged Prostate

My husband is 73 years old, has a enlarged prostate with a high PST court. Urologist did biopsy and we are awaiting results.
He has constant pain and weakness in his legs, especally right side. Also cold feet and pain in pelvic area. Is this normal? Also frequent urinating and dribbling.
Please please help - I do not know what to give him for the pain and discomfort