My horse was diagnosed with EPM over a month ago, and has been on treatment since then. In about another week the vet said I could start gently riding (working) him again. I'm worried about how he was affected by this, and how that will impact him while I'm in the saddle. And what the possible damage could be. I'm not sure how I should start out with him again. Please any advice would be a huge help to both me and him.