I hot water steeped my blackberry about 4 times; that got it vapeable, but it didn't really come into its own for about another week. It's quite nice now.
PT has to deal with strengthening the muscles and restoring/refining physical function. OT is for restoring/refining/reclaiming your ability to do ADLs ("activities of daily living") - dressing, driving, lifting things, etc. There's a ton of overlap in terms of exercises and such, but it has to do with what the therapist is thinking about/watching for/considering as you do them. For example, both the PT and the OT might ask you to do free weights and lift your arms to a certain height - the PT is looking for improvements in strength and range of motion. The OT is looking for how close you are to regaining the *practical* use of your arm, and whether he/she might need to add/subtract other things to get you to what you personally need to be able to do with that arm. (If you don't drive, for instance, then it doesn't matter whether you can ever grip a steering wheel with the injured arm as well as you did before. If you *do* drive, that's something they're thinking about.) The PT's not worrying about that stuff, they're looking at overall physical strength/progress.