What is the fine-grained topic of the following text: “I have been using the new Salonpas Lidocaine Plus products to address knee and elbow pain after my rigorous work-outs and found that the cream and liquid worked effectively,” said award-winning journalist Dr. Bob Arnot, M.D., internal medicine, author of twelve books on nutrition and health, host of the Dr. Only return the topic.
Use of Salonpas Lidocaine Plus products for post-workout knee and elbow pain relief.