I have a full tube of otomax for a dog of my past and have 8 mrsa eruptions open not draining, had 6 of them lanced 5 weeks ago and 2 have returned to pus pockets as well as 2 new ones forming, I am allergic to keflex, I took antibiotics for 2 of those 5 weeks , just tired of the sores breaking out and end of rope how to treat it, willing to use vet prescription if it will kill the disease, and prevent any new sores