Its so annoying isnt it.

I tend to suffer from dry scalp/dandruff in Winter time. After speaking to my hairdresser about it, I realised that the pattern seemed to always be in the colder months when I would have the water in the shower running A LOT HOTTER. The hot water dries out your scalp I try to watch how hot I have the water on during these upcoming months. We will see how I go this Winter. Hope that helps.