Xylocaine for Port Access

Will there be a chance of damaging to the silcone surface of the port if u use inj xylocaine?

We use 0.5% lidocaine intradermally prior to port access. Most of our pt's request it with the exception of our sickle cell pt's that have had their ports for years.

We rarely use ports, but we use EMLA if we are going to access them. Most patients seem to prefer the EMLA cream, but almost all of them have had their port accessed at some point without it and say it's not too bad.