Two of my CC friends have done it, with excellent results and no side effects. One of them, who works in France where there is a CC medical to be passed every 2 years to validate the CC licence, had to request a medical derogation to go back to flying. Basically he had to undergo a medical check to prove he still met the requirements, which he did meet.
The other one, who works in another country, had to stop flying for a few months in order to recover completely and then, after a company medical check, went back to flying.