He demonstrates the cupping therapy on the back of one of his patients, who was lying on a treatment table.

"There are two forms of cupping therapy," Gaeta tells co-anchor Harry Smith. "Cupping therapy is a treatment in which the practitioner creates suction in a cup. And then applies that cup to the body, which then draws the skin up around the cup, under the cup."

The traditional method uses fire. Gaeta holds a cotton ball and wets it with alcohol. Then ignites the soaked cotton ball and places it in the cup.

He says, "Fire cupping uses a flame to create suction in the cup - you'll see a flame in the cup - and then, we'll apply the cup to the body."

The skin gets sucked up and rises under the cup as blood rushes up.

"Cupping brings fresh blood to the area, Gaeta says. "So it tends to improve circulation. It also helps open up the chest and benefit the lungs and can even benefit menstrual problems and digestive problems, too. Most commonly, it's used for aches and pains of various types as well as respiratory problems, cough, wheezing, things like that."

"It feels a bit strange,"the patient says. "Definitely doesn't hurt. It just feels like someone's pulling at your skin."

Gaeta notes, "Cupping therapy is usually used as part of acupuncture or body work treatment. It's been part of Chinese medicine for over 2,500 years. Originally, animal horn was the original cup. The horn method is the original thing. Later on brass, ceramic, bamboo cups were used."