A larger cyst can cause pain and swelling within the scrotum. A new study published inJAMA Internal Medicinesays prescriptions tripled between 2001 and 2011 for men older than age 40. Sales were around $2 billion in 2012, according toConsumer Reports. When it comes to herbal testosterone preparations, we’d like to offer a dose of common sense. We recommend taking the capsule continuously, to keep your testosterone at a healthy level.