For ophthalmia, blepharitis, stye and any other eye inflammation, an Eyebright tea might be beneficial when used as a cold eye compress. To make Eyebright tea, take 1 teaspoon of carefully washed Eyebright herb and boil it in 1 1/2 cup of water for 10 minutes.
taking prednisone over long periods of time can cause a different set of side effects these long term side effects can include weight gain see prednisone and weight gain bulging eyes fluid retention osteoporosis acne
Muscle cramps are not a reported side effect of Prednisone. https://www.drugs.com/sfx/prednisone-side-effects.html. This is from: https://www.drugs.com/slideshow/muscle-cramp-concerns-1146. At the first sign of a muscle spasm, stop your activity and try stretching and massaging the affected muscle.