I agree that if something isn't done, a doctor's order was not followed, and then you must call the physician and document it into the legal records (including who you notified, the time, and their response, and WHY it wasn't done - and be careful with that one, because you can't document that you were tired or didn't have time). But, if you had do all that paperwork for each missed treatment, then you had time just to do the treatment. Stay over and finish the treatments and charge your facility the overtime. It's the best way to protect your license and your patients.
Now, here's one option you may not have considered. When a doctor writes an order for a treatment, s/he generally says to do it QD, BID or whatever. The MD only specifies the frequency within a 24-hour period. It is the NURSE who notes the order who, arbitrarily, assigns the times to do that. Sometimes that depends on a facility's policy, such as all QD orders will be done on the day shift at 08:00, or whatever.
The point is that you could go to your admin or DON and let her know that you are having trouble getting everything done and could she, please, redistribute some of the treatments so that more fall on the other shifts, including the night shift. (Don't expect this to be a popular idea with the other shifts, though, if you are working somewhere where the oncoming nurse is unwilling to pick-up where you left off.)
Another option is to delegate the task to someone else, if possible.
Another option is to organize better. Have your CNAs (assuming this is LTC) know who gets treatments and make it a rule that right after breakfast, or whenever, they are to lay these people down, make sure they are clean and dry, so you can whip down the halls and do them as quickly and efficiently as possible. If it is a particularly hectic day or facility, let your office manager know that you will not be available to take calls or be interrupted for the next _________- (timeframe).
Maybe some of those ideas will help.