Hello and welcome.

As noted above, it is not a "coin", it is a "medal".
At a minimum, it will be worth its silver content - if it really is solid sterling silver, then that's just over an ounce of silver, by my reckoning. If you just take it to a coin dealer, that will be all they would offer you for it.
"Medical medals" have a small but passionate collector base; it will probably be worth more than just the silver content to such a collector, but actually obtaining that value will depend on a medical medal collector finding your sale.
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