Back to work as a builder 84 hours post FUE?

It is best to ask your surgeon about post operative care as each doctor has their unique regimen.   If your doctor said "it shouldn't be a problem", you should believe your doctor.

If you stick with light duty, and don't wear a hat or helmet you should be ok.  You just don't want to create any increase blood flow rapidly to the head that can "pop" out the newly transplanted follicles.   They are still very fragile, and increased exertion or strain could possibly extricate them from their new home if severe enough.   If you do light duty, and take precautions you should be ok.  Also, avoid direct sunlight.  Best of luck, Dr. Giordano

Although we recommend patients to eliminate strenuous exercise and minimize their work load for the first week to ten days after surgery, the grafts are pretty much settled in their new homes after the first two to three days. Caution however must be used to protect the recipient area and in particular the donor area from infection until the wounds have healed. This may take 5 or 6 days, for the donor extracted area to heal. 

Make sure to keep the implanted area clean, no sweating, and do not do anything to strenuous. 

The 2 main issues that early are graft displacement, and infection risk.  At 2-3 days you still have a healing wound essentially.  Dusty and or dirty environments are not necessarily an ideal setting under that circumstance.  Additionally, grafts can be dislodged from trauma, or from any head gear that compresses, or drys and attaches to grafts.  Its doable, but you really need to be careful.  I would suggest a lose fitting baseball cap that doesn't press on the grafts and keeps the head as clean as possible. I would also shower, gently washing the head when you get home.  By day 5 - 7 you will have much less of this concern as the grafts and donor areas are fairly well healed by then. 

As long as you are aware of the transplanted areas and are careful not to rub or get it dirty you should be fine. I always just want my patients to be cautious and that means good post-op care as well as just be careful that you do not put any strain or rubbing on this area. You will be fine to go back to work, but just be careful and make sure to keep the area clean. 

At 3 days following an FUE, it is not the heavy work that you should worry about but more the 'dirt' associated with construction. Wear a hat to protect yourself from dirt