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Doctor insights on: Cold Sores On Lower Back

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I have been getting blistery sores on my lower back, whenever I eat tomatoes, or citris foods. Is this herpes or cold sores?

I have been getting blistery sores on my lower back, whenever I eat tomatoes, or citris foods. Is this herpes or cold sores?

Could be herpes: I have heard of citrus type foods triggering a herpes outbreak. You can also get skin irritation from citric acid if it touches your skin and then you are out in the sun. However, it could all just be a coincidence and your rash could be many other things. There is medication for it if it is herpes, so may worth it to get checked. You can always take a pic of it and show it to your doc later. ...Read more

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Dr. Heidi Fowler
1,041 Doctors shared insights

Cold Sore (Definition)

Also referred to as fever blisters, cold sores are small, painful fluid-filled blisters that are usually found around the lips. Cold sores are very contagious and can be spread by mouth to mouth contact and can spread to the genitalia and cause genital ...Read more


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I have a bubbly blistery rash on my lower back a bit like cold sores, very painful and itchy. What could this be?

I have a bubbly blistery rash on my lower back a bit like cold sores, very painful and itchy. What could this be?

Herpes simplex I: Cold sores, are contagious and usually occur outside the mouth, appearing as small red blisters on the lips, chin, cheeks, or in the nostrils. Also known as fever blisters, 95-percent of recurrent cold sore outbreaks are caused by type 1 herpes simplex virus, not the type 2 strain that can cause genital herpes. ...Read more

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Have cold sores and cut in vagina, spit there and now am in serious pain to the touch with tingling at times & lower back burns could I have spread it?

Have cold sores and cut in vagina, spit there and now am in serious pain to the touch with tingling at times & lower back burns could I have spread it?

Infections: Need work up immediately. Many causes such as herpes, h. Ducreyi, trichomonas, gonorrhea, etc. There are treatments and you must get them asap, especially with the back pain- signifies that infection is systemic. ...Read more

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Have cold sores. Cut on vagina, put my spit down there. Now its burns tingles and lower back too. Could I have spread to genitals, 3 months w/no sores?

Have cold sores. Cut on vagina, put my spit down there. Now its burns tingles and lower back too. Could I have spread to genitals, 3 months w/no sores?

Herpes concern: You could have herpes. It burns, tingles, hurts, and can occur in the mouth and on the skin. Type 2 happens mostly in the "boxer's shorts area, " which could include sacrum, genitals, or even thighs. A blood test will tell you type I or type ii (type ii is the worse kind). Treatment is the same: valtrex, (valacyclovir) famvir, or acyclovir. ...Read more

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Can getting a cold sore under noes cause lower back pain fever and other sick symptoms or is that only herpes 2?

Can getting a cold sore under noes cause lower back pain fever and other sick symptoms or is that only herpes 2?

No: Cold sore, or oral herpes, will not cause low back pain. Initial infection with herpes can cause fevers, but back pain and fevers are more likely to be due to something else. ...Read more

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What could my lower back pain and fever be from along with a cold sore on noes and on off itchy skin?

What could my lower back pain and fever be from along with a cold sore on noes and on off itchy skin?

Mono: Epstein-barr virus which causes mononucleousis, and has variable symptoms on the body. ...Read more

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Cold sores keep coming back recently. I haven't changed my diet or anything so what is the problem?

Cold sores keep coming back recently. I haven't changed my diet or anything so what is the problem?

Stress?: Stress in the form of emotional or physical stress can cause cold sores to recur. Sun exposure causes it in some people as well. You can take medication daily to suppress the herpes virus. See your doctor about this. ...Read more

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How can someone know if they are shedding if they only get cold sores not very. Often. And my test came back I had 1 and 2?

HSV: It is well known that persons can shed the hsv virus when there are no signs of infection. Therefore, there is no way of knowing when one is shedding the virus, which can be contagious to others. ...Read more

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How can I prevent them cold sores from coming back?

Tips: To prevent cold sores from occurring wash hands often. Maintain a healthful lifestyle (regular exercise, nutritious diet, adequate sleep, keeping stress at bay). Keep lips well moisturized & apply sun screen to the areas that your cold sores normally pop up. Talk with your physician about supplementing with lysine. ...Read more

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My younger sister keeps getting cold sores on her lips. They will appear for a few days, then comes back weeks later what could this mean?

My younger sister keeps getting cold sores on her lips. They will appear for a few days, then comes back weeks later what could this mean?

Cold Sores: Cold sores are a herpes infection. You get such an infection from direct contact, such as kissing. Usually there is tingling of the skin followed by blisters which dry up, can scab, and then heal. Rarely, scarring may result. Unfortunately, there is no cure and the virus lives in the nerves forever. Therefore, the sores may come back--usually when under stress or there is sunburn. ...Read more

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I keep getting cold sores back to back I saw one coming up so I used the abreva it went down n couple days later it came bk up what is causing that?

I keep getting cold sores back to back I saw one coming up so I used the abreva it went down n couple days later it came bk up what is causing that?

Herpes virus: Cold sores are viral infections and the virus "hides" in the nerves close to where the ulcer is. That is why they tend to come back in the same location. The best treatment involves antiviral meds. There is a topical application called viroxin that kills the virus and very effective at the early signs. However if your immune system is low, they come right back. ...Read more

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My dentist thought I had angular cheilstis but it keeps coming back. I have tried everything I used to get cold sores but that was over 5 yrs ago help?

My dentist thought I had angular cheilstis but it keeps coming back. I have tried everything I used to get cold sores but that was over 5 yrs ago help?

Angular cheilitis: Angular cheilitis is thought to be a multifactorial disorder. It may require an anti-fungal cream. Some patients have a habit of constantly licking their lips which perpetuates the problem. I would suggest that you see a dermatologist for a medical history, exam, evaluation, definitive diagnosis and treatment recommendations. ...Read more

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For the past 3 weeks I've been getting cold sores back to back - seems cyclic. Taking Valtrex (valacyclovir) and lysine. What could be the cause? Healthy otherwise.

For the past 3 weeks I've been getting cold sores back to back - seems cyclic. Taking Valtrex (valacyclovir) and lysine. What could be the cause? Healthy otherwise.

Immune system: Is a little down. Continue lysine. You can also take homeopathic thus toxicodendron for a week or two to improve symptoms. Consider seeing a chinese medicine practitioner to balance you and boost your immune system. Eliminate junk foods, processed sugars, increase fresh fruits and veggies to boost antioxidants. Drink more water, less sodas, more avocado, cucumber and celery (alkaline foods). ...Read more

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Can u get cold sores on yr arms & back ofhands?

Can u get cold sores on yr arms & back ofhands?

Yes: You could get cold sores any place on your body if someone kisses you while they have an active cold sore. ...Read more

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Sores along inside of lower lip, not cold sores, what are they?

Sores along inside of lower lip, not cold sores, what are they?

Need an exam: Without an exam, it is impossible to comment. Could be infection, inflammation, trauma, cancer, cysts, normal variations--just about anything. ...Read more

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What is the best over-the-counter product to get rid of cold sores and keep them from coming back?

2 good options: There are two otc cold sore medications I recommend. Abreva has been my go to medication for years, however orajel recently came out with a new single dose packet that has gotten rave reviews. There are no medications that will keep them from coming back. The virus stays with you forever. ...Read more

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I am a 21 year old female and weigh 117 lbs. My cold sores are so bad that I can go two months with having them back toback. How much lysine should I take to prevent them?

I am a 21 year old female and weigh 117 lbs. My cold sores are so bad that I can go two months with having them back toback. How much lysine should I take to prevent them?

Prodrome: If you frequently have cold sores, you should be well aware of when you experience the prodrome (early tingling before the outbreak.). Patients who take 2 grams of valtrex, (valacyclovir) and begin using an antiviral cream, such as denavir, can many times prevent the outbreak of the lesion. ...Read more

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My mom and younger sister (no other siblings) both get cold sores (herpes simplex). I have never had one, am I at a lower risk of getting herpes?

No: It just means you haven't contracted the virus. When they have an outbreak, avoid direct contact and don't share spoons, cups, or toothbrushes. It doesn't mean you won't ever get one. But you can limit your risks. ...Read more

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