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Doctor insights on: Pimple Like Bums On My Knees

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Caleb keeps getting a bump on his knee, like a pimple , eventually it pops but is very painful. What could this be? What is the best way to treat?

Caleb keeps getting a bump on his knee, like a pimple , eventually it pops but is very painful. What could this be? What is the best way to treat?

Maybe a boil: Some people go through phases where they get recurrent staphylococcal infections. It may be helpful to see the doctor when it is ready to pop to get a culture. There is a prescription bactroban that can be very helpful for such infections but you need to be seen to get it. ...Read more

Dr. J. Lawrence Dohan
2,317 doctors shared insights

Pimples (Definition)

Pimples are a kind of acne, and are a condition where oil gets trapped in a pore of the skin resulting in small area of ...Read more


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Grandson has pimple-like outbreak behind one knee. Hard encapsulated. They are painful at times. What could this be?

Grandson has pimple-like outbreak behind one knee. Hard encapsulated. They are painful at times. What could this be?

Possibly boils: Hard, painful pimples suggest a localized skin infection usually caused by the bacteria staph aureus. A possible reason it is behind the knee is that your grandson may have eczema which is often behind the knee and makes one more susceptible to staph infections. ...Read more

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I have a 'pimple' on my knee but it's mostly white and looks like there's fluid under it. I shave and thought it was an ingrown hair?

I have a 'pimple' on my knee but it's mostly white and looks like there's fluid under it. I shave and thought it was an ingrown hair?

Cyst: This may represent an Epidermoid cyst. Follow with your PCP or dermatologist and they can remove it if it bothers you! ...Read more

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I woke up with my left knee swollen it hurts n is uncomfortable to move the surrounding areas are fine i see a little bump like a dark pimple what?

Abscess: You may have skin infection going on. The pimple has spread inflammation around and that's what causes pain and swelling. See doc to get it treated. Don't tamper with it yourself. ...Read more

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I have pimple like bumps on my leg below my knee they do not have a head-on them though they arnt itchy only sore to touch please help thanks ?

I have pimple like bumps on my leg below my knee they do not have a head-on them though they arnt itchy only  sore to touch please help thanks ?

Pimple: Unfortunately we cannot dispense any advice to anyone below 16 and since you didn't mention your age, I must assume you are a young minor. Please see your parents and your doctor for your concern. ...Read more

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My 2 year old has blister like pimples on his knees and elbows. He says they don't itch or hurt , he was taking augmentin for an URI ?

My 2 year old has blister like pimples on his knees and elbows.  He says they don't itch or hurt , he was taking augmentin for an URI ?

Rashes: Are best evaluated by being seen...Literally. Blister like pimples on elbows and knees could be molluscum conatgiosum...Can't tell without seeing. You don't say how long they have been there. Did they appear since he was on the medication or before? Could be a viral rash. Does not sound like a typical allergy rash from medication..Make an appointment with your physician for the best answer. ...Read more

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Why do get a pimple on my knee?

Why do get a pimple on my knee?

Pimple: Generally speaking, a pimple on the knee is caused by an infected hair follicle. ...Read more