Lost of fur around scent gland area:what can we do?

[lisaf11987]

Hi

I was after some help with my male Syrian hamster. Around a year ago he started loosing fur around his back. After a few months he was a little bald but it started to grow back.
In Jan this year it started again but this time it's worse.
We took him to the vet and she gave him some drops to put on to see if it worked but it didn't. She said we need to take him to a exotic specialist however this will cost us around £80 and is an hour drive.

He scratches but not excessive and his skin is not red or sore. He eats and drinks and seems happy apart from being bald.
Any help at all would be really helpful. I have attached some photos
Thank you
Lisa