It is very important that your doctor check you closely for any problems or unwanted effects that may be caused by this medicine.
This medicine may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Call your doctor right away if you have itching; hives; hoarseness; trouble with breathing; trouble with swallowing; or any swelling of your hands, face, or mouth while you are using this medicine.
Check with your doctor right away if you have a skin rash, burning, stinging, swelling, or irritation of your skin.
Lidocaine and tetracaine combination cause numbness or loss of feeling in the skin. Be careful not to injure the treated skin by rubbing, scratching, or exposing the skin to extreme cold or heat.