Sorry I didn't update sooner.
I took Marshall to the vet a few days ago, and he had another skin scraping done. Once again, the test revealed that he didn't have any mites/parasites. She didn't recommend doing the allergy shot right now, (She thinks it is too soon), so she just gave me some antibiotic eye cream to put on his sores to see if there is any improvement. She also put him on clavamox. Already I can tell a difference! They are starting to clear up.

I will let you guys know how he comes along, but I think he will be just fine.
Thanks everyone for the support and suggestions!
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♪ Jimi | Marshall | Hendrix ♫
"When the power of love overcomes the love of power, the world shall know peace." - Hendrix