My mom had a Boer/Nubian cross given to her with a doeling that was still nursing(she was born in January)....her udder is full on one side the other just hangs there...she is finally drying up but I hope your doe has an udder more like a Nubians should be because this doe's is just atrocious, disfigured by "dead" teats that protrude on the rear and front of the functioning teats...just awful. We chose to dry her off because of the poor structure of th attachments and she will not ever be bred again...theres too much trauma that can happen to a girl that drags an empty udder on the gound.
3 times a day will work better until you get her production back up to a decent amount. It can be done. My favorite doe in the whole world actually earned her milking leg after she was almost completely dried off then milked 3X daily for a couple weeks. Lots of good quality grain on the stand and a free choice hay, fresh water all the time, etc....and you should get your milk back if she isn't completely dry yet.