Avoid wearing thongs every day. For the same reason that you should change your thong on a regular basis, you should avoid wearing your thong every day. Bacteria can easily travel up the fabric of the thong, which means wearing one every day can make you more prone to infections. Try wearing thongs only during the day or times when they are a needed fashion piece. Wear full-coverage panties at night, when you work out, and when you are wearing heavy jeans or other bottoms which won’t show your panty line.