Most cysts are harmless, slow-growing lumps that sit just under the skin, and many don’t need treatment at all. But when a cyst becomes painful, inflamed, or keeps coming back, you have several options ranging from simple home care to minor surgery. What works best depends on the type of cyst, where it is, and whether it’s causing problems.
Know What Type of Cyst You’re Dealing With
The word “cyst” covers a lot of ground. The most common skin cysts are epidermoid cysts, which form when cells from the outer layer of skin get pushed deeper and start producing a protein called keratin inside a small sac. These feel like firm, round lumps under the skin and often have a tiny dark dot (a plugged pore) at the center. Pilar cysts are similar but develop from the root of hair follicles and show up most often on the scalp. True sebaceous cysts, which come from oil-producing glands, are actually less common than most people think.
All three look alike on the surface, but they originate from different structures. For practical purposes, they’re managed the same way: leave them alone if they’re not bothering you, or have them removed if they are.
Two other types deserve separate mention because they behave differently. Ganglion cysts are fluid-filled lumps that form near joints or tendons, usually on the wrist or hand. Baker’s cysts (also called popliteal cysts) develop behind the knee when excess fluid from joint damage or arthritis collects in a pocket. Neither of these is a skin cyst, and each requires its own approach.
Is It Actually a Cyst?
Before deciding how to deal with a lump, it helps to know whether it’s a cyst or something else. Cysts typically feel firm, may be tender to the touch, and can sometimes show redness or mild swelling around them. A lipoma, by contrast, feels soft and doughy, moves easily when you press on it, and is usually painless. Lipomas don’t need treatment either, but they won’t respond to the same home care strategies.
An abscess is a pocket of infection that’s red, hot, swollen, and increasingly painful. Abscesses need medical drainage and sometimes antibiotics. If your lump appeared quickly, hurts significantly, or feels warm, treat it as something more urgent than a typical cyst.
Why You Shouldn’t Pop or Squeeze It
The temptation to squeeze a cyst is real, especially when it’s visible or uncomfortable. But squeezing, poking with a needle, or cutting into a cyst at home almost always makes things worse. You push bacteria into the tissue, which can cause infection, and you damage the surrounding skin, which leads to scarring. Even if you manage to drain some material out, the cyst wall (the sac lining) stays intact under the skin. That sac will refill, and the cyst comes back, now potentially more inflamed than before.
Home Care That Actually Helps
Warm compresses are the most effective thing you can do at home. Apply a warm, wet washcloth to the cyst for 20 to 30 minutes, three to four times a day. You can also use a hot water bottle or heating pad placed over a damp towel. Keep the temperature no warmer than bathwater to avoid burning your skin.
Warm compresses increase blood flow to the area, reduce inflammation, and can sometimes encourage a cyst to drain on its own through the skin’s surface. This won’t eliminate the cyst permanently since the sac remains, but it can shrink a flare-up and relieve discomfort. If the cyst does drain, keep the area clean and covered with a bandage until it heals.
Beyond compresses, keep the skin over and around the cyst clean. Avoid tight clothing or accessories that rub against it repeatedly, since friction and irritation can trigger swelling.
When a Cyst Needs Medical Treatment
A cyst that’s painless and not growing can safely be left alone. But certain signs mean it’s time for professional evaluation: increasing pain, redness or warmth spreading around the lump, swelling that’s getting worse, drainage of yellow or foul-smelling fluid, or rapid growth. In rare cases, cancers like squamous cell carcinoma or basal cell carcinoma have been found within cyst walls, though this is uncommon enough that routine removal of every cyst isn’t necessary.
Steroid Injections
For an inflamed cyst (especially cystic acne), a doctor can inject a small amount of anti-inflammatory steroid directly into the lesion. This calms swelling quickly, often within a day or two. The procedure takes seconds, and fewer than 1% of patients return with complications. The main risk is a small dip or thinning of the skin at the injection site, which can last six months or longer in about half the cases where it occurs.
Drainage
A doctor can make a small incision and drain the contents of the cyst. This provides fast relief, especially for infected cysts that are under pressure. But drainage alone isn’t a permanent fix. Because the sac lining stays in place, the cyst can refill over time.
Surgical Excision
The only way to prevent a skin cyst from coming back is to remove the entire sac. This is a minor outpatient procedure done under local anesthesia. The doctor makes a small incision, removes the cyst and its wall completely, and closes the wound with a few stitches. Recovery is straightforward, with most people returning to normal activity within a day or two. Even with surgery, if any fragment of the cyst wall is left behind, the cyst can regrow.
Dealing With Ganglion Cysts
Ganglion cysts are the rubbery, firm lumps that appear on wrists, hands, or feet near joints and tendons. Many ganglion cysts resolve on their own without treatment, so observation is a reasonable first step if the cyst isn’t painful or interfering with movement.
When treatment is needed, needle aspiration is the most common nonsurgical option. A doctor uses a needle to draw out the thick, jelly-like fluid inside the cyst. A single aspiration has about a 40% cure rate, but that number climbs to roughly 85% when at least three aspirations are performed over time. The cyst may refill between sessions, which is normal.
Surgical removal is reserved for ganglion cysts that keep returning or cause significant symptoms. Even after open surgical excision, recurrence rates range from 13% to 40%. When the surgeon removes a portion of the joint capsule along with the cyst, recurrence drops to as low as 4%.
Dealing With Baker’s Cysts
Baker’s cysts form behind the knee and are almost always a secondary problem. The real issue is whatever is causing excess fluid in the knee joint, most commonly arthritis or a knee injury like a meniscus tear. Your body produces extra fluid in response to the damage, and that fluid pools behind the knee.
The key to resolving a Baker’s cyst is treating the underlying knee problem. Once the joint heals or the inflammation is controlled, the cyst typically goes away on its own as the body reabsorbs the fluid. Draining a Baker’s cyst without addressing the root cause is usually a temporary measure since the fluid will accumulate again. Rest, ice, compression, and elevation can help manage symptoms in the meantime, while your doctor works on the knee condition driving the cyst.
Can You Prevent Cysts From Forming?
There is no known way to prevent epidermoid or pilar cysts from forming in the first place. They often develop spontaneously or after minor skin injuries, and no skincare routine or supplement has been shown to stop them. What you can control is avoiding the complications. Leaving cysts alone, not picking at or squeezing them, and keeping the overlying skin clean are the best ways to prevent infection and scarring. If you’re prone to recurrent cysts in the same area, complete surgical excision of the sac is the most reliable way to keep them from coming back.