Canesten Thrush 6 Day pessary contains 6 pessaries used once daily for 6 days for effective treatment of vaginal thrush. Canesten 6 Day Pessary contains 6 pessaries, which are tablets inserted high into the vagina to effectively treat vaginal thrush (vaginal candidiasis), a common infection caused by a yeast-like fungi. Symptoms may include itching, burning, and white odourless discharge. Vaginal pessary used once daily for 6 days for effective treatment of vaginal thrush. Pessary thrush treatment used once daily for 6 days. Effectively treats vaginal thrush. AUST R 92391 Canesten 6 Day Pessary Thrush Treatment.