Help help help!!!

i have a yeast infection. I used Monistat one day (came with a little egg thing and cream) i put in the egg thing into my vagina as instructed last night and the cream around like it said to relieve itching but it somehow itches MORE. What do I do?! It didn’t even itch this bad when i had the infection...

EDIT: YES, it is a yeast infection. I went to the dr., she told me to get monistat, this is the second time i’ve used it and I’ve never had ana allergic reaction before at least that I remember so maybe?