What can be done to correct nipple stretching and asymmetry? (Photo)

It is sometimes very hard to achieve perfect symmetry between the two sides. Having said that, you do appear to have a fair bit of asymmetry between the two sides and would benefit from an areolar reduction on the right side by using a Benelli suture technique, where a permanent suture is placed around the areola in a smaller circle to the one you have at the moment. The nipple needs to be lifted up at the same time as it is currently lower than your left nipple. There is however always a risk of the areola stretching again.