Having physio on hip what to expect and wear!?

Wear loose-fitting clothes such as wind shorts or warm-ups. Underwear is fine, and a sports bra (if needed) with a comfortable top such as a t-shirt or pullover would be appropriate. Nothing too warm because you'll be working and exercising and you will probably perspire. Hydrate before and re-hydrate after with water. If you are taking pain meds, take an hour before the physical therapy. The therapists will show and have you do warm up and stretching exercises. Most locations in the US give handouts so that you can do the stretches at home. The harder you work, the more benefit you'll receive from the PT. Good luck with your hip!