Shrub (skimmia) brown after hols

Hi

Came back from holiday to find my bush - think it's a skimmia looking very tired and brown!! It currently looks like this:


https://twitter.com/payrollexcel/status/855510613707157505

At this time of year it usually looks like this (from a previous post)

http://forums.moneysavingexpert.com/showthread.php?t=5304796

Is it a dead duck or can I do anything. I can't even think what has caused it but it's a lovely thing when it's blooming so am missing it a bit!! Never had to do anything to it over the last 4 years to it - always looked great.