I am experiencing toothache. with abscess what antibiotic is the fastest for relief of pain?

Dental abscess: You'll need to consult a dentist or doctor licensed in your area for specific advice and treatment. The antibiotic doesnt tend to make much difference to the pain which is why definitive treatment is needed although may help settle the swelling temporarily prior to dental treatment. https://patient.info/health/dental-abscess An antibiotic prescribed should cover the likely organisms - varies.

Amoxicillin: Amoxicillin is the first line antibiotic for dental infections. If you are allergic to penicillin then metronidazole is the alternative. Treating an infection may help to settle the pain down gradually but ultimately you still need to see a dentist to have the 'root' of the problem see to.

See DDS: Schedule an appointment with your dentist ASAP to ascertain the problem. The dentist will address and treat the toothache and will prescribe antibiotic therapy if warranted.

See your dentist: Antibiotics cannot cure toothache or relieve the pain. See your dentist right away before the pain gets worse. Take Motrin or Aleve till you can be seen. It won't help much but it'll dull the pain a bit.

Toothache: There is no one miracle antibiotic that works the fastest or the best in all cases. Pain relief is more generally attained from definitive treatment for a specific dental problem, not merely using an antibiotic.

Pain: Pain is from swelling. Swelling is from infection. Your Dentist can prescribe the anti-biotic he/she thinks best to limit spread of infection in your specific case. Antibiotic sill not cure infection. That requires specific dental treatment in addition to the antibiotic. Please call a General Dentist, Endodontists, or Oral Surgeon for the help you need. Pills alone will not do it.