... Symptoms started 5 days after a cortisone shot in knee and 6 days after an transvaginal ultrasound. This has been ongoing for 6 days. I am trying to determine what is causing the bleeding (bright red); where the source of the bleeding is located, and am wondering if the cortisone injection may have interacted with the spironolactone. There were no immediate issues after the TVU. Many thanks for any guidance