What Causes Persistent Mild Bleeding While Being On Treatment For Epistaxis?

Hi Sir! Hope You will be fine?My father has epistaxis for the last 2 days, it was a mild bleeding with no other symptoms , only his BP was high i-e 150/100 .He is Hypertensive and was with Amlidopine therapy for the last 5 years .I have done first Aid, but result-less then I inject Labetalol IV , and wait but still bleeding then i Iject tranzamin IV and do packing, and sent CBC , plattlets test.which are normal, except chloride and phosphate is is a little bit higher.SIr i have done well or not, i Am recently graduated from ELAM Cuba.Any measure i have left???