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Benzocaine Topical



Benzocaine is topically used for the treatment of itching and irritation caused by conditions like insect bites, nettle stings, cuts and scrapes, skin chafe and external vaginal and anal itching. It is also used for treating pain and itching due to certain ear infections and in the treatment of mouth ulcers and toothache.

How it works

Benzocaine belongs to the class of medications called as an ester type local anesthetic. It works by anesthetizing the sensory nerves under skin surface, thereby reducing the inflammatory sensation and reducing an urge to itch.

Common side effects

Skin redness, Allergic skin rash


Expert advice

  • Do not apply benzocaine topical on cracked or broken skin.
  • Do not use benzocaine topical if you have high levels of blood pigments or methaemoglobinemia (Increased methemoglobin in blood which has reduced oxygen binding ability).
  • Avoid drinking hot liquids while using benzocaine mouth gel.
  • Tell your doctor if you are pregnant, planning to become pregnant or are breast feeding.
  • Do not use if you are allergic to benzocaine or any of its ingredients.
  • Do not use if you have irregular heart beat or high levels of blood pigments.
  • Do not use if you are taking cholinesterases or sulphonamides.
  • Dental gel should not be used in children <12 years.

Frequently asked questions

Benzocaine Topical

 Q. Does benzocaine topical heal cold sores/numb mouth/kill sperm/make person sleepy?
Benzocaine topical can soothe cold sores and numb mouth. However, it doesn’t kill sperms or make a person sleepy.
Q. Is benzocaine stronger than lidocaine?
Benzocaine and lidocaine both belong to the same class of medicines having similar therapeutic action. Individual responses to these medicines might vary.

Content on this page was last updated on 30 September, 2016, by Dr. Varun Gupta (MD Pharmacology)