Have taken prednisone before, took 2 tablets for 5 days, 20mg , done for one day now, still have tensesion pain in temples and in head.

See below: I suspect that perhaps your physician felt you were having what is called a cluster headache. If so, the lack of response may indicate the diagnosis is incorrect or just that the medication doesn't work in every case. See or speak to your physician,who knows you best, and given your lack of improvement he will change his plan of treatment.