Yeast? Allergic reaction?

I ended my period a day ago and I decided to try using 100% cotton organic tampons

I pulled the last one I used out today because my period ended earlier than usual and it was harder to pull out because it was dry

No issues until I get out of the shower and my vagina is itching like fucking crazy

And I go and get Monistat cream I had left over from a previous yeast infection because I assume that's what it is and I put it on and realize my vaginal opening is swollen and protruding and Idk if it could be that bad of a yeast infection or an allergic reaction to the different tampons i just used for the first time ever?