can penicillin cause vaginal itching
Rating Newest Oldest. Best Answer: It certainly can. The vagina has a balance between bacteria and yeast. If the penicillin kills off most of the bacteria, the yeast will multiply and cause a yeast infection; itching is one of the most common symptoms. There are OTC medications for yeast infections, but I also recommend yogurt or lactobacillus acidopholus (the buggie that makes yogurt).