Hello,
Definitely physiotherapy can help you,
And as for your question there are different exercises and activities that focus on different aspects of breathing , eg. Lung volume , tidal volume etc. Which will help your lungs recover and provide you with an optimum amount of gas exchange.. your lungs WERE damaged but now they must be in a pretty good state .
Next Steps
consultation with a Cardiovascular Physiotherapist will be the best option .
Health Tips
try to control your breath.