Brief Answer:
Pessaries complication

Detailed Answer:
Thank you for asking

I read your question and i understand your concern. These abnormal discharges are likely an infection of genital tract attributed to pessaries , a common complication to that, Problems present as genital bleeding, unusual vaginal discharge, pain or pressure, and/or defecatory complaints, or may only be identified on routine vaginal examination.

refitting for pessary size and shape, temporary or permanent removal of the pessary, treatment of any active infection, and/or modifying the vaginal environment with acidifying products or vaginal estrogen re some of the treatment options here.

Ruling out erosion induced by pessary.
Decrease intervals between pessary removal and cleansing.
Acidify the vagina (using appropriate vaginal moisturizers or topical estrogen).
Treat any identified specific vaginal infection.
Consider replacing or sterilizing pessary.

Nutshell, get to a gynecologist, get a routine examination and let them prescribe you with some medicine and help you with alternative pessaries or other options for pelvic support.

I hope it helps. Take good care of yourself and dont forget to close the discussion please.

Regards
Khan

---