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Is cold sore contagious?

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Posted on Tue, 28 Jan 2014
Question: My husband has a cold sore that just broke out this morning. He was drinking a soda and set the can down. My two year old son grabbed it and poured it all over his face and head and some liquid got in his mouth. He did not touch the lip of the can, only the liquid inside. Can my son get cold sores from this? I am very worried.
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Answered by Dr. Gaurav Katiyar (1 hour later)
Brief Answer: There is high chance. Detailed Answer: Hi, I have gone through your query. Cold sore or herpes labialis has several stages. Your husband was at open lesion which is a highly contagious stage. The watery discharge contains active viral particle. There is a chance that discharge has mixed with soda and your son accidentally drank it and spread over his face. I will advice you to wait and watch. If any itching starts or reddening of skin over face appears,sore throat or fever, Consult a local Pediatrician for anti-viral medicines. There is no need to worry about it or prophylaxis. Hope I have answered your query. If you have any further questions I will be happy to help.
Above answer was peer-reviewed by : Dr. Raju A.T
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Dr. Gaurav Katiyar

General & Family Physician

Practicing since :2008

Answered : 642 Questions

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Is cold sore contagious?

Brief Answer: There is high chance. Detailed Answer: Hi, I have gone through your query. Cold sore or herpes labialis has several stages. Your husband was at open lesion which is a highly contagious stage. The watery discharge contains active viral particle. There is a chance that discharge has mixed with soda and your son accidentally drank it and spread over his face. I will advice you to wait and watch. If any itching starts or reddening of skin over face appears,sore throat or fever, Consult a local Pediatrician for anti-viral medicines. There is no need to worry about it or prophylaxis. Hope I have answered your query. If you have any further questions I will be happy to help.