It really varies case by case, and different surgeons have different opinions on the matter. Generally speaking, it seems most surgeons would recommend taking Finasteride in conjunction with a HT, but by no means is it a deal breaker. I took it on and off for a couple of years (started at the recommendation of Dr. Mohebi) but stopped a few years ago due to mild side effects. I've managed to hold up just fine without it, but that's not always the case.
Your hair still looks considerably better than before you started the Finasteride. Fingers crossed for you that it shapes back up to how it was before and this is all a temporary shed. Regardless, there are still other options it seems like you can explore, so not all hope is lost... And stay focused on the progress you've already made.
hi all I was interested in this also I was giving post op instructions and got my hair washed the next day. by pouring a bowl of water of your graph area they just said do this for the next few days. nothing was said about crusts etc I emailed my Doc the first day home and he said I can wash hair normal after 10 days nothing again about crusts I was just worried as some hair is attached to the crust and taught that might be graphs