AsNoriuanswered grow question 4 years ago Till i sorted air circulation inside and fresh air supply, i was having problems like budrot at the end of harvest and couple times bumped into PM.
Now my humidity changes from 60-70 at nights and days straight after watering and drops to 40-50 on dry out days.
Have no more troubles even with relatively high humidity during flower.
3 inside fans, one intake, double outtake.
If you can, buy powerfull dehumidifier , if you can't - move air a lot inside.
Check for quick colour changes on bud sugar leaves, if it goes to yellow in a day - bud rot will visit you. Have it in mind.
Good luck !