Reverting to one's old habit in haidh

I am a mazoor due to non stop bleeding for 5-6 months. I stay away for ten days and pray for twenty days.. The time of my regular flow changed and I have to read salah in the time of heavy bleeding.. Most of the time its amount is very small.. Now I am on my medication and a yellowish discharge is happening so the doctor told me that it is not blood.. I talked with wife of an aalim and she told me that it is haidh.. The doctor told me that after 21 days regular heavy flow will happen and 9 days have gone by of 21 days.. I left salah on 28 july and started on 7 july (4days from today).. Now am I mazoor so do I have to pray in the heavy flow days? Do I have to use tissue when praying salah?