How is your mother? What initial diagnostic tests were done?Invasive candidiasis is a fungal infection that can occur when Candida yeasts enter the bloodstream and may be diagnosed through a blood culture. Complicated vuvovaginal candidiasis may be persistent or recurrent and may be due to species other than Candida albicans. Seeking another doctor's opinion may also help. Take care and do keep us posted.
I would change doctors. There is an oral medication she can take. Has she tried the swish and swallow medication. There is also a mint to suck on. When it is in control gargling with vinegar may help. There are many vaginal creams. Eating yogurt may also help.