Hello,
Is the redness in eyes still persisting?
What medications you were put on?
Did the redness subside and recurred back again in last 9 months,if so how many episodes? Any other health issues?Episcleritis/ scleritis?
Please provide more information regarding pain in eye/ blurring of vision.
Do provide a photograph of your eyes for better understanding.
Next Steps
in most of the cases of episcleritis,the cause is unknown . investigation are needed for severe and/or recurring cases. in about 30-40% of cases it's due to some health issue called as collagen vascular diseases (for which u have been evaluated) and infection like tuberculosis , syphilis.