Hello, my name is Gale my son had ACL surgery yesterday, his pain has been unbearable, he is on oxycodone hcl 5mg 2 tabs every 4hrs which is not holding him, I called the hospital hot line and the oncall doc advised to give him 3tabs every 3hrs for 24hrs for pain, with an added tylenol 1000mg 3 times per day. it is not helping him. Help