politics | February 20, 2026

How long does it take for tonsillitis to go away with penicillin?

How long does it take for tonsillitis to go away with penicillin?

Antibiotics usually eliminate bacterial tonsillitis (strep throat) in about 10 days.

How long does it take for penicillin to work on throat infection?

Answer: If you’re taking antibiotics for a strep throat, you can expect to start feeling a little bit better in two to three days, and oftentimes completely better in five days.

How long does swollen tonsils last with antibiotics?

If tonsillitis is caused by a bacterial infection, your doctor will prescribe a course of antibiotics. Penicillin taken by mouth for 10 days is the most common antibiotic treatment prescribed for tonsillitis caused by group A streptococcus.

Does tonsillitis get worse before it gets better?

The tonsils may swell and become red. Pus may appear as white spots on the tonsils. Symptoms typically get worse over 2-3 days and then gradually go, usually within a week.

Can tonsils stay swollen after infection?

While the tonsils may occasionally become swollen when you have an infection, for most people the swelling goes down in a few weeks. For some people, however, the swelling becomes a chronic condition and can lead to other health complications if not treated.

How long after taking antibiotics should I feel better?

Antibiotics begin to work right after you start taking them. However, you might not feel better for two to three days.

Why is my tonsillitis not going away?

Tonsils are an important part of your immune system, so your doctor will try to help you keep them. But if your tonsillitis keeps coming back or won’t go away, or if swollen tonsils make it hard for you to breathe or eat, you might need to have your tonsils taken out. This surgery is called tonsillectomy.

How long does it take to recover from tonsillitis?

Symptoms will usually go away after 3 to 4 days. Tonsillitis is not contagious, but most of the infections that cause it are, for example, colds and flu. To stop these infections spreading: stay off work or keep your child at home until you or your child feel better.

What happens if antibiotics don’t work for tonsillitis?

If test results show that your tonsillitis is caused by a bacterial infection, a short course of oral antibiotics may be prescribed. If oral antibiotics aren’t effective at treating bacterial tonsillitis, intravenous antibiotics (given directly into a vein) may be needed in hospital.

Is it normal to feel worse after antibiotics?

While taking an antibiotic may make you feel like you’re doing something to get better, it’s not helping at all.” In fact, taking antibiotics may make you feel worse. Like every other drug, antibiotics can have bad side effects, including severe diarrhea and serious allergic reactions.

Is 7 days of antibiotics enough?

Simply put, 7 – 10 days is the “Goldilocks number”: It’s not so brief a span that the bacterial infection will shake it off, but it’s also not long enough to cause an adverse reaction.