However,as you are having these symptoms only after bactrim,pls don’t worry as GI symptoms like nausea,vomiting and diarrhea are common
side effects of this drug.
You should take a healthy light diet like soups,salads,curd,rice etc and avoid fast foods,fried stuff and spicy foods for a while.Use citrus fruits which may mask the nausea and if the symptoms persist then pls take some antiemetic drugs like promethazine or ondansetron(Zofran).Also get your PAP smear repeated.
Hope it helps.