I'm tired of my son being in pain
Do you need any help ?
Maybe I do but I think no one can stop his pain but me.
You shouldn't feel like it's solely up to you to make your son's pain go away. There are professionals who are trained to help people with all kinds of pain, and there is surely someone out there who can make your son feel better.
Who cares? I'll just keep at it with my son's pain.
You're not helping your son by not taking him to the doctor.  If you really care for him, you will take him to the hospital. It's the only way to stop his pain.