tonsil that comes and goes

Overview

Tonsils are two small almond-shaped glands at the back of the throat. Sometimes one or both tonsils swell and then shrink back to a normal size. This kind of on-and-off swelling is often a sign that your body is fighting off an infection or reacting to something in your environment.

Yes, it is common. Many people experience tonsil swelling during a cold, flu, or throat infection. Children and young adults tend to get swollen tonsils more often than older adults.

It can affect anyone, but it is most common in children, teenagers, and young adults. Older adults can also have this issue, but the cause may be different and should be checked by a doctor.

Symptoms

Common symptoms

• Swollen or enlarged tonsils
• Sore throat or scratchy feeling
• Redness at the back of the throat
• Difficulty or pain when swallowing
• White spots or a coating on the tonsils (with infections)
• Mild fever or headache
• Bad breath
• Muffled or hoarse voice
• Feeling like there is a lump in the throat

Symptoms in children

• Trouble swallowing or refusing to eat
• Drooling more than usual (especially in younger children)
• Fussiness or irritability
• Fever
• Noisy breathing or snoring at night

Symptoms in older adults

• Mild or no fever
• A feeling of fullness or a lump in the throat
• One-sided swelling (which may be more concerning)
• Less pain than younger people often feel

Causes

Main causes

• Viral infections such as the common cold, flu, or Epstein-Barr virus (mononucleosis)
• Bacterial infections, like strep throat (streptococcal bacteria)
• Allergies to pollen, dust, or other substances
• Tonsil stones — small, hard bits that form in the tonsil crevices
• Stomach acid reflux (acid backing up into the throat)
• Smoke, dry air, or other throat irritants

Risk factors

• Being a child or teenager
• Close contact with people who have sore throats or colds
• Frequent exposure to secondhand smoke or air pollution
• Having allergies or frequent sinus infections
• A weakened immune system

When to see a doctor

See a doctor urgently if:

• Severe swelling that makes breathing uncomfortable
• Trouble swallowing even small sips of water
• Drooling or inability to swallow saliva
• A fever that stays high or does not respond to fever-reducing measures
• One-sided swelling that gets worse over a day or two

Book a routine appointment if:

• A sore throat that lasts longer than 2–3 days
• Recurrent episodes of tonsil swelling (several times a year)
• A white coating or patches that do not go away
• Swelling that always affects the same side
• Snoring or breathing problems during sleep

Diagnosis

A doctor will ask about your symptoms and look inside your mouth and throat using a light and a tongue depressor. They may also feel your neck for swollen glands or tenderness.

Tests that may be done

• A rapid strep test or throat swab (a soft cotton swab gently touched to the back of the throat)
• A throat culture, which is sent to a lab to check for bacteria
• Blood tests if the doctor suspects viral infections like mononucleosis
• Sometimes imaging (like an X-ray or ultrasound) if swelling is unusual or one-sided

What to expect at your appointment

The exam is quick and usually painless. A throat swab may cause a brief gagging feeling. Most results come back within a few minutes to a few days, depending on the test. The doctor will explain what is causing your symptoms and what to do next.

Treatment

Treatment depends on the cause. Viral infections usually get better on their own with rest and home care. Bacterial infections may need prescription medicine. Allergy-related tonsil swelling can improve when allergens are avoided. The right treatment plan is based on your specific situation.

Self-care at home

• Drink plenty of warm fluids like tea, broth, or water with honey (only for children over 1 year old)
• Gargle with warm salt water several times a day
• Rest your voice and avoid shouting
• Use a humidifier or sit in steam to calm dry throat
• Take non-prescription pain relievers only if recommended by your doctor or pharmacist
• Avoid smoking, alcohol, and very spicy or acidic foods

Medical treatments

If a bacterial infection is confirmed, your doctor may prescribe antibiotics to help clear it. For allergies, they might suggest over-the-counter antihistamines or other allergy treatments. If pain or fever is causing discomfort, your doctor or pharmacist can advise you on the best pain reliever for your age and health history. Always follow the dosing instructions on the label or those given by your healthcare provider.

When is surgery considered?

In some cases, doctors recommend surgery to remove the tonsils (tonsillectomy). This is usually considered when a child or adult has very frequent severe infections, or if tonsil swelling causes serious breathing problems, difficulty swallowing, or a suspected growth that needs to be removed and checked.

Living with this condition

During a flare-up, give your throat extra care. Drink plenty of fluids, rest, and avoid foods that are hard, crunchy, or too hot. If you smoke, consider talking to your doctor about quitting. Keep a symptom diary to notice patterns, such as whether swelling happens after certain foods, seasons, or exposures.

Lifestyle tips

• Wash your hands often with soap and water
• Avoid sharing cups, utensils, or toothbrushes with someone who has a sore throat
• Keep your home environment smoke-free
• Manage allergies by dusting regularly and using air filters
• Stay hydrated throughout the day

Diet and exercise

Eat soft, soothing foods like soups, yogurt, mashed potatoes, and smoothies when your throat is sore. Avoid tough, spicy, or acidic foods that can irritate the tonsils. Gentle walking or light activity is fine when you feel up to it, but take extra rest days if you have a fever or feel tired.

Mental health and emotional wellbeing

Recurring throat problems can be frustrating and tiring. It may make you worry about missing work or school. It's normal to feel anxious when a symptom keeps coming back. Talk with your doctor about your concerns and find healthy ways to cope, such as deep breathing, talking to a friend, or writing in a journal.

Prevention

You cannot always prevent tonsil swelling, but good habits can lower your chances. Staying away from people who are sick, washing your hands well, and not touching your face can reduce the spread of germs. If allergies trigger your symptoms, avoiding allergens helps.

Vaccines

Staying up to date on recommended vaccines, like the flu shot, may help prevent some viral infections that can cause tonsillitis. Talk to your doctor or local health service about what vaccines are right for you.

Screening programmes

There is no routine screening test for tonsil problems. Regular check-ups with your doctor can help catch any recurring issues early and give you a chance to discuss your symptoms.

Complications

If left untreated

• A sore throat that does not heal and worsens over time
• Development of a peritonsillar abscess — a painful collection of pus near the tonsil
• Difficulty breathing if swelling becomes severe
• In rare cases, infection can spread to other parts of the body

Long-term outlook

For most people, tonsil swelling that comes and goes is temporary and harmless. With the right care and, when needed, medical treatment, symptoms usually improve. Surgery is only recommended for severe or repeated cases. Your doctor will work with you to find a plan that keeps you comfortable and healthy.

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