What is the lidocaine used for?
certain medical procedures/exams (such as sigmoidoscopy, cystoscopy). Lidocaine is a local anesthetic that works by causing temporary numbness/loss of feeling in the skin and mucous membranes.
How to use Lidocaine Cream Topical Local Anesthetics
If you are using the over-the-counter product to self-treat, read and follow all directions on the product package before using this medication. If you have any questions, consult your pharmacist. If your doctor has prescribed this medication, use it as directed.
Before use on the skin, clean and dry the affected area as directed. Apply a thin layer of medication to the affected area of skin, usually 2 to 3 times a day or as directed.
If you are using the spray, shake the canister well before using. While holding the canister 3-5 inches (8-13 centimeters) from the affected area, spray until wet. If the affected area is on the face, spray the medication onto your hand and apply to the face. Do not spray near your eyes, nose, or mouth.
If you are using the foam, shake the canister well before using. Spray the foam onto your hand and apply to the affected area.
Do not use on large areas of the body, cover the area with waterproof bandages or plastic, or apply heat unless directed to do so by your doctor. These may increase the risk of serious side effects.
Wash hands immediately after use unless you are treating an area on the hands. Avoid getting the product in eyes, nose, or ears. If the medication gets in these areas, rinse the area immediately with clean water.
The dosage is based on your medical condition and response to treatment. Do not use more of this product, use it more often, or keep using it longer than directed. If there is an infection or sore in the area to be treated, do not use this medication without consulting your doctor first.
If your condition lasts or gets worse, or if you think you may have a serious medical problem, get medical help right away.
Common side effects of lidocaine injection may include:
feeling hot or cold;
confusion, ringing in your ears, blurred vision, double vision; or
numbness in places where the medicine is accidentally applied.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.