My dr prescribed pessarys for thrush. I hav just inserted 1 for the first time & when I pulled the applicator out, blood layered it but it didn't hurt me?

Vaginal yeast. This almost certainly means that you have yeast infection in the bowel, the headquarters of the infection. The blood is due to infection, not the pessary. Thrush is the term used for yeast infection in the mouth. Yeast feeds on sugar so get rid of it.