Hi there!
I am myself 1 month and 2 days post-op (Dr. Phillippe Houtmeyers in Belgium). I too did notice a slight discharge on the pad, but mostly a couple of hours after dilatation, which I've ascribed to a mix of lubricating gel, iodopovidone and possibly some natural mucus (I underwent a peritoneal pull-through); it's whitish or sometimes yellowish, not foul-smelling, though... It has more of a healthy "acidic" smell, reminding of of Lactacyd (a feminine hygiene product which coincidentally contains lactic acid). During my last visit to dr. Houtmeyers, about 10 days ago, I already had it and he told me it was normal at this phase of healing; he told me that when I'm fully healed, the neo-vagina is supposed to remain naturally moist but it shouldn't produce enough discharge to make me use a pad... Fingers crossed!
Anyways, since my very first dilatation, my surgeon told me to do a vaginal and vulvar wash using a gynecologic solution of Iso-Betadine (iodopovidone) before and after dilating (which I am now doing 3× per day), as well as after defecating; I use a vaginal applicator. It's annoying and somewhat more time-consuming, but I've been respecting his instructions. I hope next visit he'll allow me to stop with it.
In your case, the fact that the discharge is foul-smelling might suggest a bacterial overgrowth in the vagina. I wouldn't worry too much about a fistula - you don't really have symptoms suggestive of this. The sensation you describe with some farts can be because gas gets squeezed between the buttocks to the front in place of to the rear; that can cause a bit of a tickle on the lower part of the vulva, a structure which is still very sensitive.
Anyways, I would certainly ask for an advice from your surgeon. Maybe you can send him a pic of your pad and ask if you have to be seen before the date already planned?
Wish you the best,
Sarah
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