cellulitis risks and benefits for patients

Overview

Cellulitis is a common bacterial skin infection that affects the deeper layers of the skin and the tissue beneath it. It usually appears as a red, swollen, warm, and painful area of skin that can spread quickly. It is not the same as cellulite.

Yes, cellulitis is a fairly common skin infection. Many people get it at some point in their lives, and it is one of the most frequent reasons for hospital visits related to skin infections.

Anyone can get cellulitis, but it is more common in people with diabetes, weakened immune systems, poor circulation, or swelling in the limbs (lymphedema). It also becomes more common as people age.

Symptoms

Common symptoms

• A red, swollen, and tender area of skin that feels warm to the touch
• Pain or tenderness in the affected area
• The red area may grow larger over hours or days
• Skin that looks tight, shiny, or pitted like an orange peel
• Fever, chills, or feeling generally unwell
• Blisters or bumps on the skin

Symptoms in children

• Cellulitis in children often appears on the face, neck, or around the mouth or anus.
• Children may be fussy, tired, or have a fever.
• The affected skin may look red and swollen, and the child may cry when the area is touched.

Symptoms in older adults

• Older adults may have less obvious redness, but more swelling and pain.
• Confusion or drowsiness can be a sign of a severe infection.
• Cellulitis may appear near a skin ulcer, surgical wound, or area of poor circulation.

Causes

Main causes

• Bacteria, usually Streptococcus or Staphylococcus, enter the skin through a break in the skin.
• Cracks in dry or flaky skin, cuts, scrapes, insect bites, surgical incisions, or skin ulcers can allow bacteria inside.
• Existing skin conditions like eczema or athlete's foot can create openings for bacteria.

Risk factors

• Diabetes, especially if blood sugar levels are poorly controlled
• A weakened immune system (from illness or certain medications)
• Lymphedema (chronic swelling of a limb)
• Poor blood circulation in the legs
• Previous episodes of cellulitis
• Being overweight
• Skin conditions that cause cracking, like psoriasis or eczema
• Injecting drugs or having broken skin for any reason

When to see a doctor

See a doctor urgently if:

• You notice a red, swollen, painful area of skin with fever or chills
• The red area is expanding rapidly
• You have diabetes, a weakened immune system, or a history of serious infections
• You have cellulitis on your face or near your eyes
• Symptoms do not improve within 24 to 48 hours of starting treatment

Book a routine appointment if:

• You have a minor skin wound that becomes red, warm, or painful
• You have repeated episodes of skin infection
• You want advice on how to care for skin that is prone to cracking or infection

Diagnosis

A healthcare provider will usually diagnose cellulitis by examining the skin and asking about your symptoms and medical history. They will look for signs like redness, swelling, warmth, and pain, and may check if the area is spreading.

Tests that may be done

• No specific test is usually needed, but your provider may take a blood test to check for signs of infection.
• If there is a wound or an open sore, a swab may be taken to identify the bacteria.
• In rare or severe cases, an ultrasound or other imaging test might be used to rule out a deeper infection or an abscess.

What to expect at your appointment

The healthcare provider will likely ask when the symptoms started and whether the redness has been spreading. They may mark the border of the red area with a pen to track whether it grows. You should expect the provider to feel the area gently and may need to remove any bandages or clothing covering it.

Treatment

Cellulitis is treated with antibiotics, which are medications that kill bacteria. Most people take antibiotics by mouth for 5 to 10 days, but some may need to receive antibiotics through a vein (intravenously) in the hospital if the infection is severe. It is important to finish the entire course of antibiotics, even if you feel better.

Self-care at home

• Keep the affected area elevated to reduce swelling.
• Rest and avoid putting pressure on the area.
• Apply a cool, damp cloth to reduce discomfort (unless your provider advises otherwise).
• Drink plenty of fluids and eat well to help your body fight the infection.
• Watch for spreading redness, more pain, fever, or other new symptoms.

Medical treatments

Your healthcare provider will prescribe an appropriate antibiotic, which may be taken as pills or given through a drip in the hospital for more severe cases. They may also recommend pain relief, such as paracetamol or ibuprofen, to manage fever and discomfort. Always take medicines exactly as directed and ask your pharmacist or doctor if you have questions.

When is surgery considered?

Surgery is not usually needed for cellulitis. However, if pus builds up in a pocket (an abscess) or dead tissue forms, a small procedure may be needed to drain the pus or remove damaged tissue.

Living with this condition

While you are recovering, keep the affected area clean and dry, and follow your healthcare provider's advice about bandages or dressings. Watch for any signs that the infection is getting worse and contact your provider if you are concerned.

Lifestyle tips

• Moisturize your skin daily to prevent dryness and cracking.
• Treat any cuts, scrapes, or insect bites promptly by cleaning and covering them.
• If you have a skin condition like athlete's foot or eczema, manage it as recommended by your doctor.
• Wear protective footwear outdoors and when working in risky environments.
• If you have diabetes, keep your blood sugar under good control to help prevent infections.

Diet and exercise

A balanced diet with plenty of fruits, vegetables, and protein can help your immune system. Gentle exercise, like walking, may be fine if your provider says it is okay, but avoid strenuous activity that might strain the affected area while it is healing.

Mental health and emotional wellbeing

Dealing with a skin infection can cause worry or frustration. It is normal to feel anxious while waiting for treatment to work. Talk to your healthcare provider about your concerns, and lean on friends or family for support. If you feel overwhelmed or depressed, consider speaking with a mental health professional.

Prevention

You can reduce your risk of cellulitis by protecting your skin and keeping it healthy. This includes moisturizing dry skin, quickly cleaning and covering any cuts or wounds, treating underlying skin conditions, and being careful to avoid injuries. If you have poor circulation or lymphedema, talk to your doctor about ways to reduce swelling and protect your limbs.

Vaccines

There is no vaccine specifically for cellulitis. However, staying up to date with recommended vaccines, such as those for tetanus and other infections, is still a good way to protect your overall health.

Screening programmes

There is no routine screening test for cellulitis. The best prevention is regular self-checks of your skin, especially if you have risk factors like diabetes or poor circulation. Look for cracks, cuts, or areas of redness, and see a doctor early if you notice anything concerning.

Complications

If left untreated

• The infection can spread deeper into tissues, muscles, or bones.
• Bacteria can enter the bloodstream, leading to sepsis, a life-threatening condition.
• An abscess (a pocket of pus) may form and require drainage.
• Chronic swelling of the affected limb may develop, increasing the risk of future episodes.

Long-term outlook

With timely antibiotic treatment, most people with cellulitis recover completely within a week or two. Serious complications are uncommon when it is treated early. If you have repeated episodes, your doctor can discuss long-term strategies to help prevent future infections. Remember, the sooner you get care, the better the outcome.

Find support

External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.