I Am Having A Sticky Purplish Discharge, I Currently Have

I am having a sticky purplish discharge, I currently have a implanon birth control in, I havent had a period since november and I just finished treatment of monostat for yeast infection, shortly after I finished it I had an irritated right labia minora, I ended up using hydrocortisone topical cream to treat that,
but now Iam having a purplish discharge