Children rarely develop them. It's a pilonidal cyst most likely. Trigger finger affects the flexor tendons of your hand, causing them to become swollen. Epidermoid cysts are more common. What do I do if it's erupting on it's own? It is cystic acne; you can treat it with a cold pres,s then acne creams. Sometimes a small lump can form at the base of the affected finger as well. Healthline Media does not provide medical advice, diagnosis, or treatment. Possible treatments can include: Most of the time, lumps on your hand or wrist aren’t a cause for concern. They develop in the tendon sheath, which is the membrane that surrounds a tendon in your hand and helps it to move smoothly. Ganglion cysts are often painless. Start with your general practitioner. This pain can get worse with increased activity. If you notice a lump on your wrist or hand, it’s a good idea to make an appointment with your doctor. If symptoms are not relieved through nonsurgical methods (needle aspiration or immobilization), or the cyst returns after aspiration, your doctor may recommend a surgical excision of the cyst also known as total ganglionectomy. They’re filled with a yellow, waxy material that’s called keratin. But, in rare cases, they may be a sign of a more serious condition. About 25 percent of people with RA have rheumatoid nodules. It sometimes bleeds and pus comes out. Port Manteaux churns out silly new words when you feed it an idea or two. Ganglion Cyst. In an incision and drainage the wall cannot be removed. If you don’t already have a primary care provider, you can browse doctors in your area through the Healthline FindCare tool. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/cc\/Treat-a-Cyst-Step-1.jpg\/v4-460px-Treat-a-Cyst-Step-1.jpg","bigUrl":"\/images\/thumb\/c\/cc\/Treat-a-Cyst-Step-1.jpg\/aid3041819-v4-728px-Treat-a-Cyst-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"