Left Side Upper Teeth Is Under Root Canal Treatment. After

left side upper teeth is under root canal treatment. after filling of cement, before putting cap I had a severe paid at the end of the left side jaw radiated to left ear, when I had complainted to the doctor, he ad made some treatment to the tooth. immediately pain is relieved some extant. however, I was unable to chew the food. as per doctor advice I took analgesic tab-DOLONEXT DT and MOXIKIND CV 625(AMMOXYCILLIN 500 mg, POTTASIUM CULVANALTE 125 MG) for three days. teeth pain is under control, however I am finding a small pain in end of the jaw radiating to left ear. tomarrow doctor has given me an appointment for further porcedure to complete the treatment. I am a BP, Diabetic patient and 61 years old. I am scared. Is there any wrong procedure done by the doctor?