Yeah natural remedies are generally more effective, the infections are sussing out these meds and they arent working as well anymore. With the garlic clove, sometimes you need more than one night doing it, especially if it is bad.

Also another one is to have a low, warm bath with a cup of vinegar in it, apple cider vinegar is a good one. You can also use it diluted to wash the area with a cotton ball. Also responds well to homeopathics, so chat to a naturopath

The garlic is safe in pregnancy.