High Blood Pressure. Kindly advise.

Post his Bypass Surgery in Feb 2020, we have been noticing that his blood pressure remains on the higher side. It is usually 160-170/60-70. He used to be on Asomex before surgery. But after surgery, the same was stopped. Instead he was prescribed EMBETA XR 50 twice a day and LOSAR 12.5 twice a day. In recent times, BP has been overing in the range of 180-195/70-90. The cardiac surgeon noticed that and has changed Losar 12.5 and prescribed TELMA 40 twice a day instead. A couple of days last week, BP even touched 210. That day he was feeling pain near the eyes too. Infact, he says that he does feel odd now a days when he moves his shoulder. Today it is 199 though there is no apparent discomfort. We are worried as to why BP is that high inspite of two regular medicines. Kindly advise.