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Dr. Andrew Rynne
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Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Soreness In Mouth Inspite Of Taking Penicillin For Strep Throat?

I was diagnosed with Strep throat last Thursday. I have been taking penicillin three times a day every day since then. My mouth is not sore anymore, however, for some reason, my tongue feels very raw now and is of a yellow/white color. Is this normal? How can I treat it?
posted on Sat, 13 Jun 2015
Twitter Thu, 25 Jun 2015 Answered on
Twitter Thu, 25 Jun 2015 Last reviewed on
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Dentist,  's  Response
Hi Dear,

Welcome to HCM.

Understanding your concern.

Thanks for your query . The symptoms you mention are clearly indicating condition known as canker sore .

They are also called as fever blisters . They are reddish and painful in nature .

Sometimes antibiotics destroy the normal flora of mouth and cause mouth ulcer .

I would suggest you to :-

- Apply gel containing lidocaine . Which is a local anesthesia . Apply it before eating food .

- Do warm saline or baking soda rinses 2-3 times a day .

- Do chlorhexidine mouthwash rinses twice a day .

- Do hydrogen peroxide rinses mix with equal amount of water .

If condition doesn't improve in a week the consult oral pathologist for proper diagnosis and rule out causes like oral herpes or oral thrush .

Doctor may prescribe antibiotics , anti fungal or anti viral drug depending upon the diagnosis .

hope your concern has been resolved.

Best Wishes,
Dr. Harry Maheshwari
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What Causes Soreness In Mouth Inspite Of Taking Penicillin For Strep Throat?

Hi Dear, Welcome to HCM. Understanding your concern. Thanks for your query . The symptoms you mention are clearly indicating condition known as canker sore . They are also called as fever blisters . They are reddish and painful in nature . Sometimes antibiotics destroy the normal flora of mouth and cause mouth ulcer . I would suggest you to :- - Apply gel containing lidocaine . Which is a local anesthesia . Apply it before eating food . - Do warm saline or baking soda rinses 2-3 times a day . - Do chlorhexidine mouthwash rinses twice a day . - Do hydrogen peroxide rinses mix with equal amount of water . If condition doesn t improve in a week the consult oral pathologist for proper diagnosis and rule out causes like oral herpes or oral thrush . Doctor may prescribe antibiotics , anti fungal or anti viral drug depending upon the diagnosis . hope your concern has been resolved. Best Wishes, Dr. Harry Maheshwari