A few days ago, I was busy cooking at the stove. The cat decided that I should drop everything and feed him. He let me know by rubbing against my ankle, as usual. when I ignored him after tree or four rubs, he bit me , gently , in the heel but hard enough to draw a little blood. I didn't pay attention until two days later when the area around the bite had become red and sore. Having had cat bites in the past, I realized that I had a Pasteurella infection.
en.wikipedia.org/wiki/Pasteurella
I soaked my heel in a bowl of warm water with 10 ml CDS + 2 ml DMSO for half an hour at supper time, again at bed time and again in the morning, by which time the problem was solved.