Sorry your dad has those medical conditions and is in pain. A few suggestions about gout pain:
1) ask the doc to give him an injection of steroid such as methylprednisone either in muscle or at the gouty joint. This can relieve the pain almost instantly and can last for up to 2 weeks. By that time gout will get better.
2) I believe the doc gave him colchicine. If it's not working, he may like to ask the doc to see if it's ok to try other meds such as indocin, or other nsaids.
3) more info on what to do during a gout attack can be found under "emergency gout treatments" at
http://www.Icuredmygout.Org .
4) ask him to see a rheumatologist. They are the best in treating gout.
Good luck to your dad and take care.