Key takeaways
Lidoderm (lidocaine 5% patch) and topical menthol (BioFreeze, IcyHot) are both topical medications used to relieve pain, but they belong to different drug classes and have distinct uses. Lidoderm is a local anesthetic available by prescription and is specifically FDA-approved for treating nerve pain caused by shingles, known as postherpetic neuralgia. It works by numbing the nerves in the skin. In contrast, menthol is an over-the-counter topical analgesic used for minor aches and pains in muscles and joints, such as those from arthritis, backache, and strains. Lidoderm is applied as a 5% patch that you wear for up to 12 hours in a 24-hour period, while menthol comes in various forms like patches, gels, and sprays, with patches typically worn for up to 8 hours. Lidoderm can cause skin irritation and has potential interactions with other medications, while menthol is generally well-tolerated but can cause serious skin burns if misused. Additionally, Lidoderm patches can be cut to fit the area of pain, whereas menthol patches should not be cut.
