Please help! I need advice for a stye my hamster has developed quickly. nothing in his cage has changed and I have took out the sand bath just in case it was that. it doesn't seem to be bothering him but I don't want it to get worse. can someone tell me what to do or how to help him?
I have attached a link to an image of him, his fur is wet because I tried to gently wipe his eye with water.