How can I get a tourist visa to pay a visit for PRC with my wife? I like treatment with herbs.

I would like to have full information in field of treatment with medical herbs and spa. Would you be so kind as to help me through my visit to Beijing? I am ready to pay for checking my wife and me. My wife suffers from neurosarcoidosis. How much I should pay for my wife treatment. I would like to have check up for me too. I am 67 years old and I am retired from University of Baghdad. My wife is also retired and would like to enjoy tourism.