Need help about a sprained wrist please help!

[Bomp]

Train what you can roadwork etc.. When done right good shadowboxing is the best excercise for a boxer bar sparring.

[Chris Nagel]

I recommend arnica cream over your wrist to speed up healing, along with applying mild heat to increase circulation. It may also help to mix in some witch hazel and/or MSM cream with the arnica cream to reduce any remaining inflammation.

If it's just a mild sprain you probably won't have any trouble working with the double-end bag or the speed bag, but stay away for exercises that put more strain on your wrist such as hitting the heavy bag and sparring.

If I were you, I would use this time for learning. Work on technique, watch fights, start a stretching program, get proficient at jumping rope, etc. If you've already payed the monthly fee at the gym you can still go there and get a good work nonetheless with the adjustments that you will have to make.