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Doctor insights on: Causes Of Cold Sores On My Feet

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Dr. Heidi Fowler
1,014 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 generally caused by the herpes simplex virus 1 which is related to herpes simplex virus 2 that causes genital herpes. Cold sores are very contagious and can be spread by mouth to mouth contact. They can spread to the genitalia and cause genital ...Read more


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I have a few 1/4"-1/2" blisters that appeared on my hands 2 days ago and I a few on my feet as well. Last week I had a cold sore. What is going on?

I have a few 1/4"-1/2" blisters that appeared on my hands 2 days ago and I a few on my feet as well.  Last week I had a cold sore. What is going on?

Palmar rash: There are only a few rashes that will involve the palms and soles. Some entirely benign, some serious. You should see your Primary Care Provider to sort this out. ...Read more

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Can you get cold sores on your feet?

Can you get cold sores on your feet?

I am not aware of : Herpes simplex type i affecting the feet. It often is found on the lips, skin around mouth, nose, chin, mouth, cheeks, & even eye or genitalia. I will flag this question & ask one of the infectious disease doctors to also provide an answer. ...Read more

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I think i'm getting cold sores on my foot. What should I use?

I think i'm getting cold sores on my foot. What should I use?

Get a diagnosis: Cold sores are caused by the herpes simplex virus and occur on mucous membranes of the body. A similar virus, herpes zoster, causes similar lesions on the skin. This occurs in anyone who had chicken pox earlier in life. The virus lays dormant in the body and later reappears when you have lowered resistance, or are stressed. Talk to your dr. , get a proper diagnosis, and ask him about a vaccine ...Read more

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How long does the hand foot and mouth disease usually last ? And will all the cold sores go away at once or little over time ?

How long does the hand foot and mouth disease usually last ? And will  all the cold sores go away at once or little over time ?

About a week: HFM is a viral infection that causes blisters on palms, soles and in the mouth. Can be associated with moderate fever. The ulcers in the mouth will fade at different rates. Drink cool liquids, soft foods like pudding, yogurt, ice cream. Avoid acids like Orange Juice. Annoying but usually a self limiting condition. Tylenol (acetaminophen) can also help with the pain. ...Read more

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I shot ice day before yesterday in forearm & foot now it's swollen,red,and has fever. I've been in bed with a cold& sore throat ever since. Any sugges?

I shot ice day before yesterday in forearm & foot now it's swollen,red,and has fever. I've been in bed with a cold& sore throat ever since. Any sugges?

See a doctor : This has me concerned – I think you have a infection from where you injected those drugs. This can progress, including infection of the bloodstream, with organ dysfunction and possibly death if not treated properly. Sorry to scare you, but you need to get help right away. Doctors are professionals – you should not be judged for drug use – and medical records are private. Hope you get better. ...Read more

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What are the causes of cold sores and how do you get rid of them?

Herpes simplex virus: Cold sores are painful blisters that can occur on the lips, roof of the mouth or the gums which are caused by the herpes simplex virus (hsv-1). Melissa officinalis or lemon balm (cream) expedites healing of cold sores. It can reduce healing time by half. Studies also show that regular use can help v recurrences. Brief supplementation with lysine 1, 000mg orally 3x / day at the onset, can work. ...Read more

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What are the causes of cold sores and what can be done for it?

What are the causes of cold sores and what can be done for it?

Laser: Canker sores or aphatous ulcers have no know cause except they are triggered by trauma, stress, spicy, citrus food. Not everyone gets them though. They are recurring and even though there are some medication that help cut the cycle down from 14 days, I am a big proponent of laser treatment . Recent studies have shown laser treatment of the area can stop the pain immediately and cut the cycle ...Read more

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What are the causes of cold sores and how can I get them to go away?

HSV-1: Cold sores are painful blisters that can occur on the lips, roof of the mouth or the gums which are caused by the herpes simplex virus (hsv-1). Melissa officinalis or lemon balm (cream) expedites healing of cold sores. It can reduce healing time by half. Studies also show that regular use can help v recurrences. Brief supplementation with lysine 1, 000mg orally 3 x/ day at the onset can help. ...Read more