Side effects from lidocaine cream uses are uncommon, but some people may experience mild irritation at the application site on the skin. More serious possible side effects include severe burning, stinging, or irritation, swelling or redness, dizziness or drowsiness after application, or unusual temperate sensations on the skin. If any of thesemore serious side effectsare seen you should discontinue use and speak to your physician or the pharmacist at the pharmacy where you buy Lidocaine ointment. They may suggest other pain relief and skin numbing treatment options.