Brady had this infection in his ear, and they told me if it got into his blood, it would be very nasty. I'm so sorry that your FIL is dealing with it. We are keeping him in our prayers that he will be able to recover. They used a heavy duty antibiotic for us, and it took a couple of weeks, but it did finally clear up - I hope that the same is true for your FIL. I'm so sad he is in so much pain
Prayers being sent your way.