Benzocaine is the most commonly used topical local anesthetic belonging to the ester group. It works by preventing the transmission of nerve impulses, thereby temporarily numbing the skin. It is used against pain and itching caused due to insect bites, sunburn, skin irritation, anal fissures, hemorrhoids, oral ulcers, earache, etc. It has been found to cause methemoglobinemia in people with respiratory illness and heart disease when taken by mouth or applied orally. Benzocaine is not recommended for use in children below two years or teething issues. They are being marketed as Orabase, Orajel, Topex, etc.

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I have a lump or a bubble under my tongue. Is it worrisome?

Query: Hello doctor, I think that I have developed some kind of a lump or a bubble overnight under my tongue. I am just wondering whether I should be concerned or not. It has not happened overnight but I only noticed it this morning however I could be wrong.  Read Full »

Dr. Krishna Swaroop Achanta

Answer: Hi, Welcome to I understand your concern. If the lump is big enough to be held by your finger when you palpate physically, it may need a biopsy. However, from the photo that you have shared (attachment removed to protect the patient's identity), it looks like a common ranula to me...  Read Full »

My granddaughter has a severe cut on her tongue. Kindly help.

Query: Hi doctor, My granddaughter has a severe cut on her tongue. I am worried. Kindly help.  Read Full »

Dr. Beryl Fredrick

Answer: Hello, Welcome to Thanks for writing in, and I understand your concern. If the cut is small and the bleeding has already stopped, there is nothing to worry about. It should heal within the next week. I suggest applying a topical anesthetic gel like Orajel (benzocaine topical)...  Read Full »

Why do I have a weird rash on my foot for a year?

Query: Hi doctor,I have a weird rash on my foot. That has been persistently itchy, peeling and building. It does not burn, but it is unappetizing to look at. I do take Lyderm for it. It seems to stop the itching, but not the spreading of the rash. It has been on my leg for a year now. Please help.  Read Full »

Dr. Salah Saad Shoman

Answer: Hi, Welcome to This is most probably stasis dermatitis (attachment removed to protect patient identity), which occurs in people with poor circulation and in serious cases may develop into ulcers. Stasis dermatitis is common in people above 50, especially if have heart diseases or o...  Read Full »

How do oral herpes sore look?

Query: Hi doctor, Last week, I had a sore on the outside of my lower gum. My girlfriend, who is a dental assistant, told me that it is just a canker sore and it will go away. Now, I have one on the inside of the upper gum towards the roof of my mouth. If the second one is also a canker sore or is this som...  Read Full »

Dr. Prerna Jain

Answer: Hi, Welcome to These are called aphthous ulcers and commonly known as canker sores (attachment removed to protect patient identity). The reason why they occur is unknown. It could be a good allergy or vitamin B12 deficiency or stress ulcers. They occur as often as every two to three mo...  Read Full »

What to do for a hole between chin and gums due to accidental hit?

Query: Hello doctor, I fell and hit my chin, and my teeth tore a hole inside my lower mouth area between chin and gums. It does not hurt but was not sure if I needed to have it stitched?  Read Full »

Dr. Geethanjali. S. S

Answer: Hi, Welcome to I have read through your complaint and the relevant details. But I am not able to see the pictures you have attached. (attachment removed to protect patient identity). The format does not support the files to open only. I request you to once again send me the pictures f...  Read Full »

My son and I have canker sores. Why do we have them at the same time?

Query: Hello doctor, I am a 25 year old female. My weight is 130 lbs and height is 5 feet. My son is 5 years old.  He has autism. He is a little overweight for age. I do not have herpes of the mouth (cold sores) and as far as I know neither should he. However, a week ago I bit the inside of my lip, and t...  Read Full »

Dr. Paras Angrish

Answer: Hi, Welcome to The cause of canker sores is unknown, but they tend to run in families. Canker sores are not contagious. Eating foods that you are allergic to may cause you to get a canker sore. Eat or drink food that has a lot of acids, such as orange juice. It also occurs when you do ...  Read Full »

I had unprotected sex and got ulcer in scrotum and mouth. Will it be herpes?

Query: Hi doctor, I am having 101 degree fever daily for past four nights. Two days back, I got some white spots on my scrotum and lots of ulcer in my mouth. I am not sure whether the white spots are ulcers or not, but they do not pain or itch. The fever is intermittent, mostly during evening or night. ...  Read Full »

Dr. Muhammad Majid Hanif

Answer: Hi, Welcome to I assure you not to worry as everything is going to be fine if proper care and treatment is opted in for. I have thoroughly gone through your case and can well understand your genuine health concerns.  Read Full »

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