Most abscesses will not go away on their own. Once a pocket of pus forms and becomes walled off inside the body, it typically needs to be physically drained to heal. Small boils (very minor skin abscesses) can sometimes rupture and drain naturally, but a true abscess that has matured and become firm or painful almost always requires medical treatment.
Why Abscesses Don’t Resolve on Their Own
Understanding why an abscess persists comes down to how your body responds to infection. When bacteria invade tissue, your immune system sends white blood cells to fight them. The battle creates pus, a thick fluid made of dead cells, bacteria, and debris. Your body then walls off this infected pocket with a capsule made primarily of fibrin and collagen. This capsule is a containment strategy: it stops the infection from spreading, but it also traps everything inside.
That same wall creates a major problem for treatment. Antibiotics traveling through your bloodstream have a very hard time penetrating into the abscess cavity. The environment inside is acidic and low in oxygen, which further reduces how well antibiotics work even if they do get through. Bacterial enzymes inside the pus can also break down antibiotic molecules. This is why a course of oral antibiotics alone rarely clears an abscess. The infection essentially sits in a protected pocket that your body can neither fully eliminate nor fully heal around.
What Happens If You Ignore It
Leaving an abscess untreated is risky. A skin abscess can grow larger, become increasingly painful, and eventually spread infection into surrounding tissue or the bloodstream. Dental abscesses carry their own set of dangers: untreated infections around the teeth can descend into the deep neck space (a life-threatening condition) or spread upward into the sinus cavities.
Internal abscesses, such as those forming in the abdomen after surgery or a ruptured appendix, are even more concerning. These collections are often walled off by surrounding organs and fatty tissue, making them invisible from the outside. The low-oxygen, high-acid environment inside promotes anaerobic bacteria and increases lactate levels, which is associated with higher mortality. Internal abscesses almost never resolve without intervention and typically require image-guided drainage or surgery.
When Drainage Is Necessary
Incision and drainage is the standard treatment for skin abscesses, carbuncles, and large boils. Infectious disease guidelines recommend it as the primary approach, not antibiotics. A clinician numbs the area, makes a small cut, and allows the pus to drain completely. The cavity is often packed with gauze to keep it open so it can continue draining and heal from the inside out.
Antibiotics are added only in specific situations: when you show signs of a systemic response like fever above 100.4°F, rapid heart rate, or rapid breathing, or when you have a weakened immune system. If an abscess comes back after initial treatment, guidelines recommend draining and culturing it early to identify the specific bacteria involved, particularly to check for drug-resistant strains like MRSA.
What You Can Do at Home
For a small, superficial abscess that hasn’t yet matured, applying warm, moist compresses several times a day can help it come to a head and drain on its own. This works by increasing blood flow to the area and softening the skin over the abscess. Do not squeeze, push on, or try to lance the abscess yourself. Squeezing can push bacteria deeper into surrounding tissue or into your bloodstream.
Keep the area clean and covered. If the abscess does drain on its own, gently clean it and apply a fresh bandage. But if it’s larger than a marble, growing, extremely painful, or accompanied by fever or red streaking on the skin, warm compresses alone won’t be enough. That abscess needs professional drainage.
Recovery After Drainage
Once an abscess is properly drained, most people feel significant pain relief within the first few days. You’ll typically need to change the packing or dressing at home, starting about 24 hours after the procedure. The wound heals from the inside out, which means it stays open for a while and gradually fills in with new tissue. For a straightforward skin abscess, this process takes one to several weeks depending on size and location.
Perianal abscesses and larger or deeper abscesses take longer. Follow-up appointments for surgical drainage of perianal abscesses are commonly scheduled around 12 weeks after the procedure. During recovery, avoid swimming or activities that put pressure on the wound until it has fully closed.
Preventing Recurrence
Some people are prone to repeated abscesses, especially if MRSA is involved. The CDC recommends several practical steps to reduce your risk. Wash your hands frequently and shower after exercise. Don’t share towels, washcloths, or razors. Keep any cuts or scrapes covered with clean bandages until they heal, and throw used bandages away in the regular trash. Use a barrier like a towel between your skin and shared surfaces at gyms or locker rooms.
If you’ve had a recurrent abscess cultured and it tested positive for MRSA, your provider may recommend a decolonization protocol to reduce the bacteria living on your skin. This typically involves specific body washes and nasal treatments over a set period. Completing any prescribed antibiotics exactly as directed, even if you feel better partway through, also helps prevent resistant bacteria from developing.
Signs the Infection Is Spreading
A localized abscess that stays contained is painful but manageable. The situation becomes dangerous when bacteria escape into surrounding tissue or the bloodstream. Warning signs include fever or unusually low body temperature, rapid heart rate, fast breathing, confusion, extreme fatigue, warm or clammy skin, and red streaking extending outward from the abscess. A rash with small, dark-red spots can also signal a bloodstream infection. These are signs of sepsis, and they require emergency care. Confusion, a racing heart, or rapid breathing are often the earliest indicators that the infection is no longer staying in one place.