Neuropathy: protecting feet that can't warn you

Pain has a job. It warns you about damage while there is still time to act. Peripheral neuropathy slowly shuts that warning down. It often starts in the toes. It can feel like burning, tingling, pins and needles, or spreading numbness. The danger is not only what you feel. It is what you stop feeling. Think of a pebble in the shoe, a too-hot bath, or a blister forming on a walk. With neuropathy, you may notice none of them. So protection has to be on purpose.

Step zero: get it diagnosed

Diabetes is the most common cause. It is far from the only one. Low vitamin B12 can cause it. So can thyroid problems, some medicines, alcohol, and other conditions. Several of those causes are treatable. New or worsening numbness or tingling needs a workup, not a shopping trip. Everything below protects your feet. Only a diagnosis can treat the cause.

Shoes become a shield, not a style choice

When feeling fades, the shoe’s first job is to stand between your skin and the world:

• Always on — even at home. Many neuropathic foot wounds start with one barefoot step across a room. House shoes with real soles count.
• Roomy and smooth inside. Extra depth and width. Soft tops. No rough seams inside. Pressure you cannot feel still damages skin.
• The hand check. Before every wearing, shake out the shoe. Then sweep your hand inside it. Your hand can still feel what your foot cannot.
• Break in new shoes one hour at a time. Check the skin after each hour. You can no longer feel a bad fit. Your eyes have to catch it.

Socks follow the same rules. Choose socks that are soft, pull sweat away, and have no thick seams or tight bands. Some people with swelling also do well with light graduated compression. If you have any circulation concerns, ask your doctor first.

Inspection: your eyes replace your nerves

Once a day, in good light, check every surface. Tops, soles, heels, and between the toes. Use a long-handled mirror or your phone camera for the bottoms. You are looking for redness, blisters, cracks, swelling, or a warm spot. Add the temperature rule: test bath water with your elbow or a thermometer. Never test it with a numb foot.

The supplement question

People ask about supplements all the time. The real answer: it depends on the cause. If a shortage is the cause — B12 is the classic — fixing it matters. It may improve symptoms. Other supplements are being studied, with mixed results. One big caution: more is not better. High doses of vitamin B6 can actually cause neuropathy. Work through this with your doctor, with lab tests. Not with a shopping cart.

When to call promptly

Call now — not at the next routine visit — for any of these. Call if a wound is not healing. Call for new redness, warmth, swelling, or drainage. Call for foot pain at rest. And call if numbness is climbing upward. Feet that cannot feel trouble depend on you to spot it early and act fast.