bald patch

Hi so over the last week I've been noticing one of my guinea pigs shedding more than usual, I thought nothing of it at first but today I noticed this flaky bald patch above his bum, I was reading online for things it could be and saw a few different answers so wasn't sure how to help it, so I...

Hello, last week I found on my Piggie Marshall I noticed a small patch of hair above his nose was dry and stuck together, I looked it up on line and i couldn't find anything , but today as I picked him up the dried hair was hanging of his nose and fell off and underneath was a tiny red sore? His...