I got my newest guinea pig, Onyx, just on Monday and she is a little over a month old. Two days after I got her, I noticed a patch of missing hair above her eye that appeared over night. She also had CRAZY dandruff, like when I pet her my shirt gets covered in dead skin. I took her to the vet the next day and he gave her an ivermectin injection. That was only yesterday and the scaly patch has not spread, but seems to have gotten a little more white in color.
While I believe it is mites, a part of me is concerned it may be ringworm. I'm posting some pictures of the patch here. I'd love some experienced opinions of whether this looks like mites or ringworm. Thanks you!
...okay I'm not sure how to post pics here. If you click on this link it'll show the pics. The top two are yesterday right after the vet, the bottom is this morning. https://did%3Dda39a3ee5e6b4b0d3255bfef95601890afd80709%3Bid%3D115510823218%3Bkey%3DeLx5X3-mO3CZN_7wrLz6EQ%3Bname%3Dhcgstebar