Leave

So my wife is about to get surgery in 2 weeks, her recovery time is 6 weeks. Is there a way to her doctor to make some type of memo or letter of recommendation for me to be put on leave or if I can be put on PTDY Status for the duration of her recovery time so my leadership and command can approve it? Already talk to my first line and PSG and they didn't had an answer for my question and aren't really trying to get me an answer so here I am, again.