my father has thort cancer 3rd stage,kimo therpyes 6 ho chuki hai,ab phir ukke gale main ghand hue hai,ab phir kimo chal rahi hai,mere father ke gale me kafi dard rehta hai,dard brain ki tarf jyada hota hai,after 3 hrs bad vo pain killer lete hai,plz tell me vo theek ho jyenge ya nahi