Vulvar burning is a common symptom affecting the external female genital area. This sensation can range from mild irritation to intense pain, significantly impacting daily life. Lidocaine, a topical anesthetic, offers temporary relief by numbing the affected area and reducing burning, itching, or pain.
How Lidocaine Works
Lidocaine functions as a local anesthetic by interfering with nerve signals in the skin. When applied to the vulva, it permeates the outermost skin layer to reach nerve endings. It specifically blocks voltage-gated sodium channels on nerve cell membranes, preventing nerve cells from generating and sending electrical impulses that transmit pain signals to the brain.
This creates a localized numbing sensation, reducing the perception of burning or pain. Unlike oral pain relievers that affect the entire body, topical lidocaine provides targeted relief only where it is applied. The numbing effect typically begins within 5 to 10 minutes and lasts for less than an hour.
Forms and Application
Lidocaine for vulvar burning is available in various topical forms, including creams, gels, and ointments, with common concentrations ranging from 2% to 5%. Ointments are often preferred for vulvar skin over creams because they tend to sting less and adhere better, offering a more sustained effect. Gels are also available and can be effective.
A thin layer of the product should be applied directly to the affected vulvar area. For instance, with an ointment, a pea-sized to peanut-sized amount can be gently rubbed into the skin. For liquid forms, soaking a cotton ball and placing it at the vaginal opening for 2 to 5 minutes can be effective. Apply the product up to 3 to 4 times daily as needed, always following product instructions or your healthcare provider’s guidance.
Important Considerations for Use
While lidocaine provides temporary relief, be aware of potential side effects and precautions. Some individuals may experience temporary burning, stinging, redness, or itching upon application. In rare cases, allergic reactions like severe irritation, rash, or swelling may occur. If severe reactions develop, discontinue use and seek medical attention immediately.
Avoid applying lidocaine to broken or irritated skin unless directed by a healthcare provider, as this can increase absorption and potential side effects. Although topical lidocaine is generally safe with minimal systemic absorption, excessive use can lead to more medication being absorbed. Prolonged or excessive use without medical supervision is not advised, as it can sometimes worsen irritation over time.
Vulvar burning can indicate various underlying conditions, such as infections, skin disorders, or nerve issues. Consult a healthcare provider for persistent vulvar burning lasting three months or more, especially if there is no clear cause, or if symptoms worsen or new symptoms appear. A medical professional can diagnose the cause and determine if lidocaine is an appropriate part of a broader treatment plan.