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A 35-year-old member asked:

How long does penicillin treatment take for tooth infection?

2 doctor answers4 doctors weighed in
Dr. John Comisi
Dentistry 38 years experience
Typically 48 hours: It typically can take up to 48 hours for most antibiotics to reach therapeutic effect in most people.
Dr. Park Firebaugh
Dentistry 36 years experience
Varies: It takes about 24 hours for the antibiotic to begin working and it may take a few days for swelling to go down. Sometimes additional or different antibiotics have to be used if the first one didn't help. However, don't think that an antibiotic alone can fix the problem. It may make symptoms better, but you need to figure out why there is infection.
Dr. Gary Sandler
Dentistry 54 years experience
Great answer!
Mar 14, 2013

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Similar questions

A 32-year-old member asked:

How much penicillin should I take for a tooth infection?

2 doctor answers2 doctors weighed in
Dr. Peter Karsant
Dentistry 39 years experience
Diagnosis: Is the key. Some infections are resistant to penicillin. You should see your md or dentist and be sure you can take penicillin for the infection and then see your dentist to treat the cause. Antibiotics only buy time, treatment is the cure and you run the risk of the penicillin not working the next time you need to take it. Having said all the above 500mg 4x/day.
A 46-year-old member asked:

Is it okay to use penicillin for tooth infections?

5 doctor answers8 doctors weighed in
Dr. Michael Ein
Infectious Disease 48 years experience
Yes and no: Penicillin can be effective in some dental infections but often broader spectrum and anaerobic coverage is needed such as augmentin(amoxicillin and clavulinic acid) or clindamycin.
A 42-year-old member asked:

How long does it take before the medications take into effect for a tooth infection?

2 doctor answers6 doctors weighed in
Dr. John DeWolf
Dentistry 40 years experience
Varies: Sometimes the impact of antibiotics is nearly immediate and sometimes it takes a few days. If things aren't improving after 4 or 5 days, a different antibiotic may be necessary.
Canada
A member asked about a 31-year-old female:

If you have a tooth infection how long will it take to spread?

3 doctor answers4 doctors weighed in
Dr. Gary Sandler
Dentistry 54 years experience
Spreading infection: It depends upon many factors and there is no one good answer. Just be prudent about getting proper treatment in a timely manner!

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Last updated Apr 2, 2020

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