Rebel MP Jami-Lee Ross has broken his social media silence by thanking those who've sent him messages of support.

The Independent MP said he was well looked after by the fantastic people at Middlemore Hospital.

On medical advice he says he remains on leave but he's written to National giving them his proxy vote in Parliament to maintain the proportionality of the representation in the House.

Newstalk ZB political editor Barry Soper says the move's clearly designed to prevent National from using the so called waka jumping legislation to have him thrown out of Parliament and forcing a by election in his Botany seat.