Mother's High BP. Pandemic situation.

Hi Doctor, My Mom Aged 54, Weighs 82 and 5'1, was diagnosed with hypertension in 2011. In Aug'20 she had High BP and headache. But since then her BP is not becoming balanced. Although I've shown the 15 days back to a physician she changed her medicines from Teliste 40mg to Telsar LN 5 she takes it in the morning once. Her blood profile is all good except B12 and D3 deficiency. She's taking telsar LN5 everyday since 15 days but today her BP was again at 155-105 but with no symptoms (she doesn't show symptoms now only in August that happened) there is a follow up tomorrow with the physician. She's all good with a bindass personality just I get worried after seeing her BP not getting normal. I'd like to know your suggestion ; lifestyle management or any precautions. It would be of great help considering the pandemic situation. Thank you and stay safe.