Show 1481: Flip-Flops, Fungus and Foot Pain: What Are Your Feet Trying to Tell You?

Millions of people suffer with foot trouble. Some have heel pain when they first get out of bed. Others complain of flat feet or bunions. Athlete’s foot is very common, though it doesn’t always respond as expected to antifungal medications. Speaking of fungus, toenail fungus can be extremely stubborn. What are your feet trying to tell you about what they need? How can you keep them healthy, especially in the summertime? At The People’s Pharmacy, we strive to bring you up to date, rigorously researched insights and conversations about health, medicine, wellness and health policies and health systems. While these conversations intend to offer insight and perspective, the content is provided solely for informational and educational purposes. Please consult your healthcare provider before making any changes to your medical care or treatment. How You Can Listen You could listen through your local public radio station or get the live stream at 7 am EST on Saturday, August 1, 2026, through your computer or smart phone (wunc.org).  Here is a link so you can find which stations carry our broadcast. If you can’t listen to the broadcast, you may wish to hear the podcast later. You can subscribe through your favorite podcast provider, download the mp3 using the link at the bottom of the page, or listen to the stream on this post starting on August 3, 2026. What Are Your Feet Trying to Tell You? Most everyone looks forward to summer vacation, but that special time away from the usual routine may pose challenges for your feet. Whether you are hiking in the mountains or running on the beach, you may need to pay attention to your tootsies. Time at the Beach Beach time can inspire long walks on the sand, but soft sand could really put a strain on foot muscles that aren’t accustomed to it. Our expert guest, podiatrist Jane Andersen DPM, recommends wearing good running shoes for walking long distances on sand. Choosing to walk where the sand is hard-packed when the tide is low can also be helpful. Possibly the most important but easily overlooked step to protect feet at the beach is to apply sunscreen. The tops of the feet are easily overlooked, but they can burn pretty readily. And if you are planning to spend time sunbathing prone, you might even want to apply sunscreen to the bottoms of your feet. They never see the sun, and walking on sunburned soles could be quite painful. Protecting Bare Feet Another consideration at the beach is how you will get from the parking lot or boardwalk to the water. How hot is the sand? If it is hot enough to burn the soles of your feet, you might consider using water sandals. In general, going barefoot can be risky. Whether you’re at the beach, at a campground, in your own backyard or even inside your home, there are potential hazards underfoot. Bits of glass shards, little pieces of wire, tiny pebbles or nails could all cause havoc if they end up embedded in a sole. Protecting your soles by wearing good flip-flops makes a lot of sense. To find a list of flip-flops that provide appropriate arch support as well as sole protection, consult apma.org. Treating Black Toenails During this episode, Joe describes a trip to the beach with a long walk. By the time he removed his shoes, his longest toe had a black toenail that was rather painful. Although the pain faded before too long, it took about a year for the dark color to disappear from the nail. Dr. Andersen suggests that it often takes at least nine months to regrow a toenail. She emphasizes that if the nail turns black due to sudden trauma (like dropping something heavy on the toe), a podiatrist should check it out. Sometimes there is a fracture under that discolored nail that requires medical attention for proper healing. What Is the Story on Flat Feet? Joe has always had flat feet. Perhaps your feet are flat, too. The condition is pretty common. If Joe gets out of a bathtub or swimming pool and leaves footprints, they are almost oval. There is very little indentation in the center. Other people with higher arches may leave footprints that are nearly C-shaped. Flat feet can benefit from arch support such as orthotic inserts for shoes. High arches can also cause trouble, especially if they are linked to a genetic condition called Charcot-Marie-Tooth. It is a nerve disorder that can also lead to muscle weakness. Consequently, people with high arches may also need podiatric care for their feet to stay comfortable and healthy. Plantar Fasciitis Is a Pain The bottoms of your feet have thick connective tissue called fascia that run from the heel to the ball of the foot. Inflammation of this tissue causes pain, typ