Hi, Maya,
At about post-op week 6 the podiatric surgeon who did my surgery showed me an exercise to restore normal range of motion in the big toe. It worked so well for me that he didn't even need to send me to an outside physical therapist. Sitting in the examining chair with my leg outstretched, the Dr. pushed my big toe toward me, downward as far as it would go, practically at a 90-degree angle, and held it there. I let out a shriek and kicked with my other foot. If he was standing any closer there would have been an injury. (He would be singing soprano, if you catch my drift!) When he told me to do a set of 12, 3x a day, I didn't think it was possible at first. In the beginning I could only push the toe a little, but it really started loosening up after I tried it for about a week or so. Here's how it's done: Grab your big toe & gently push it downward, toward your ankle (not away from it). Hold it there for as long as you can (preferably for a count of 10), then release it. Do this exercise 11 more times. I started with one set a day, and most days I find I can only do 2 sets, but it still worked wonders. Just start slowly, and do as many as you can. If you really can't deal with it, find a physical therapist to work with you, because it's important to have as near-normal r.o.m. in the big toe as possible.
Chris