You may fix your damaged tyre if the following conditions are met :
Can Runflat tyres be repaired ? Yes! So long as they haven't been driven flat! In practice, it makes it nearly impossible to repair runflats.
You can repair a tyre from the outside using plugs Within minutes, your tyre is repaired at a limited cost. It is a very simple quick fix that isn't recommended by manufacturers because there is no inspection of the internal structure.
User's guide
Inserting a special fixing piece for tyres called " mushroom" is much better than the previous method. It is more reliable but require the intervention of a tyre professional, which is more pricey. The tyre has to be dismounted before the different steps (cleaning, buffing, vulcanising of the mushroom and removal of excess material can be carried out).
This method is approved by manufacturers.
The above method are the most common.Some other methods exist, with varying degrees of efficiency..