Bleeding and sanitary protection

This feels like a silly question but I don't know where/who else to ask.

I have had 3 bouts of post menopause bleeding since February and this time is the heaviest, so I need to use proper period pads, not just liners. Ive not had periods for years so don't have stocks anymore but can I use tampons for this kind of bleeding? In Feb my gp said they saw an area on my cervix which looked possibly like the source of bleeding. 

(I had a transv ultrasound end of Feb and womb lining thickness was fine, just a cyst on my ovary which they're rescanning end of june and after that I will get a gynaecology appointment in July. In March I had another few days of bleeding and contacted my gp to see if it was ok to leave til June. They contacted the gynaecology team to ask if anyone checked my cervix at the hospital when I had the scan. There's not been a reply to that yet).