I think i have the same. Every time i use my ovo vivrator i got a burn itch kind of sensation that last several days. Im almost sure is that. My ginecology says that it could ve giving me infections because some anal dripping ( e ccoli on urinary zone) - i would alao love to know if someone else can got this harsh with the use of a dildo. I of course clean it well.
most cyber skin now comes with something on the box phanalathane free of something like that if you bought the wrong kind, and you can tell by setting it on a piece of paper if there is an "oil" spot on the paper THROUGH IT OUT! buying vibros isn't something you should do spur of the moment or without research, if you don't have toy cleaner get some that could have caused your yeast infection, or it could just be a yeast infection.
Stop using the vibrator and you will know. If you get better, there you go. Then try using it again if you are brave enough and see if the symptoms come back. Sounds like an allergic reaction.