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Understanding Boils and Safe Treatment Options

Posted on January 12, 2026

Understanding How to Treat Boils

Talking about boils and carbuncles can be difficult, but here at 121 Pharmacy, we deal with them every day. They are uncomfortable, tender, and can often appear at the most inconvenient times. If you, or someone close to you, is currently trying to manage one you probably want a clear definition of what a boil or carbuncle is, and advice on how best to deal with them.

This 121 Pharmacy guide gives you the professional advice you need to tackle the problem.

  • The 'Why' - Identifying the common causes behind these skin infections.
  • The 'How' - Safe, at-home treatments to encourage natural draining.
  • The 'Must-Haves' - Why traditional remedies like drawing ointments remain a staple in UK medicine cabinets.
  • The 'When' - Recognising the signs that your boil needs a GP’s attention.

What Are Boils?

Boils usually start when bacteria finds its way into a hair follicle - perhaps through a tiny nick from shaving or a bit of skin irritation. Your immune system immediately rushes to protect you, and it’s this internal battle that creates the redness and swelling we see on the surface.

As your body works to clear the infection, pressure builds up underneath the skin, which is why that 'throbbing' feeling is so common. You’ll probably notice:

  • A tender, firm bump that might feel quite 'angry' or warm to the touch.
  • A gradual change where the lump becomes softer and more painful as it fills with fluid.
  • A visible 'head' - usually a white or yellow centre - showing that the infection is moving toward the surface.
  • A tight sensation in the skin surrounding the area.

Because bacteria likes warm, damp environments, you’ll often find boils appearing in 'friction areas' like the back of the neck, underarms, thighs, buttocks, or the groin area.

What Are Carbuncles?

Sometimes, what starts as one sore spot can turn into a cluster of boils - this is known as a carbuncle. It can be quite a shock when this happens, as the pain and swelling are often more noticeable than with a single boil. Because a carbuncle is a collection of infected follicles, it’s your body’s way of dealing with a slightly more aggressive 'invader.'

When you’re checking the area, these are the signs that a carbuncle has formed:

  • A heavy, throbbing ache that feels deeper than a surface-level spot.
  • A group of 'heads' forming close together on one raised, red lump.
  • A larger area of warmth and inflammation that seems to be spreading.
  • General symptoms of infection, like feeling shivery, tired, or having a temperature.

While we can do a lot to manage the discomfort at home, carbuncles are more likely to need a quick check-in with a pharmacist or GP to ensure the infection is properly managed and won't lead to lasting scarring.

Why Do Boils Occur & Can They Spread?

If you have recurring boils, it’s often because of a combination of a small skin injury and the natural bacteria that live on our bodies. These bacteria love warm, moist places, so active people or families in busy households often find themselves dealing with boils or carbuncles more often.

You might be more likely to see a boil develop if:

  • Your skin is frequently irritated by tight clothing or repetitive movement.
  • You are managing a condition like diabetes that affects how your body fights infection.
  • Personal hygiene items are being shared - this is a very common way for bacteria to move between family members.
  • You have been feeling run-down, leaving your immune system a little less prepared to fight off a follicle infection.

One thing to keep in mind is that boils are contagious. Because the fluid inside is concentrated with bacteria, any 'leaking' or popping can spread the infection to other parts of your body or to anyone you live with. This is why we always recommend leaving the boil alone to heal and being extra careful with handwashing and shared linens until the area is clear.

How to Care for a Boil at Home

With the right care, most boils will heal without any complications. Here are some safe steps you can take:

1. Keep the Area Clean- Wash the skin gently using warm water and mild soap. Pat dry with a clean towel.

2. Use Warm Compresses - Pressing a warm cloth to the area can ease discomfort and encourage fluid to come to the surface.

3. Avoid Squeezing - This increases risk of infection spreading deeper.

4. Cover the Boil if Leaking - Use a clean dressing and change it regularly.

5. Monitor Symptoms Daily - Watch for changes such as spreading redness or increased swelling.

Healing usually happens once the boil drains on its own. After draining, continued cleaning and dressing changes help prevent further infection.

What About Carbuncles?

Carbuncles can take longer to heal due to the depth and number of infected follicles. Warm compresses and good hygiene still play an important role, but if the swelling remains large or painful, professional medical advice is recommended. In some cases, antibiotics may be necessary.

Seek help promptly if you notice:

  • Red streaks near the area
  • Fever
  • Worsening swelling
  • Persistent pain
  • Repeated recurrence

These symptoms may indicate spreading infection

Using Drawing Treatments to Encourage Healing

When a boil feels particularly stubborn and hasn’t started to drain on its own, we often recommend a traditional "drawing" treatment. A classic drawing treatment is Magnesium Sulphate Paste, which works by gently softening the skin and encouraging the fluid to migrate toward the surface. By drawing the infection to a head naturally, you reduce that painful internal pressure without the risks associated with forcing the skin open.

How to Tell Your Boil is Getting Better

As the treatment works, you should notice the boil becoming less "angry." The most common signs of progress include:

  • The "Pointing" Phase - A visible opening forms as the skin softens.
  • Natural Drainage - The fluid begins to release, leading to an immediate reduction in pain.
  • Flattening - Once drained, the area will lose its tightness and gradually shrink.
  • Healing - A small dry spot or scab forms; keep this clean and covered until it’s fully gone.

When a Home Remedy Isn't Enough

While most boils can be managed at home, your safety is my priority. Please book a chat with your GP if the boil doesn't improve within a week, or if you notice "red flags" like a fever, chills, or red streaks spreading from the site. Special care is also needed if boils appear in clusters or are located near your eyes or spine.

Keeping Future Boils at Bay

Prevention is all about keeping your skin’s barrier strong and your environment clean. This is achieved by a few simple habit shifts:

  • Hygiene first - Wash bedding frequently and avoid sharing towels or razors.
  • Skin care - Keep skin moisturised to prevent cracks and wear breathable clothing to reduce sweat and friction.
  • Quick action - Clean even minor nicks immediately and always shower after a workout.

Frequently Asked Questions About Boils

Are boils contagious?

The bacteria inside a boil can spread through direct contact or contaminated fabrics, but intact skin is generally safe.

How long do boils last?

Most resolve within one to two weeks.

Can I treat boils on my face at home?

Seek guidance for facial boils, especially near eyes, due to higher risk of complications.

Do antibiotics treat all boils?

Antibiotics may be prescribed if infection spreads, but many boils clear without them.

Will boils always come back?

Not always. Lifestyle changes and early hygiene steps reduce recurrence.

Supporting Healthy Skin and Encouraging Safer Recovery

Boils and carbuncles are common infections that can be uncomfortable, sore and slow to heal, but with the right approach they usually heal safely. Good hygiene, warm compresses, and allowing the infection to drain naturally are all important steps in supporting recovery.

Avoid squeezing or breaking the skin as this reduces the risk of additional infection. Monitoring changes and knowing when to seek advice also make a big difference. If symptoms worsen, if fever develops, or if boils return frequently, speaking to a GP is the safest next step.

Traditional topical treatments such as drawing pastes can support the natural healing stage by helping soften the skin and encouraging fluid to rise to the surface. A trusted option is available here.

With simple home care, attention to hygiene and a little patience, most boils disappear and the skin restores itself over time.