Well, "the damage is done". It doesn't look like active corrosion, more like an over-zealous cleaning. I can see the pitting from extreme corrosion removal, and that orange colour is typical of either ammonia or lye, both very effective at removing corrosion from copper. Now, maybe it had active corrosion before the cleaning, but it's clear now. Put it in an air-resistant container and it'll be no worse off than any other piece of copper.
The contagious "bronze disease" form of corrosion is pale green and powdery. If you ever notice that form on your coins, either this coin or any other, it's time for some over-zealous cleaning of your own.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis