My doctor prescribed Estrace vaginal cream due to burning and itching NOT due to yeast infection or any other infection. I have been using boric acid suppositories almost every day to prevent yeast infections (since I used to get them a lot). Should I continue using boric acid supp. while using Estrace? I am 50 years old and I didn't have my period for 6 months, I just got my period again right after I started using Estrace, coincidence?