I think Your doctor is correct there is no other way to treat this bacterial infection (test shows positive test) than taking antibiotics.And if you are afraid of having this ask your doctor to give antibiotic capsule to put into the vagina,this will give you fast relief from the bacterial attack.I think that is the better way to treat than swallowing..This won't affect anything to your child.Its going to be serious if you don't control the infection.