Swelling of the little finger has many causes, such as inflammation and infection, can be treated with antibiotics. In addition, the cause of pinky swelling can also be gout, rheumatoid arthritis, etc., can take non-steroidal anti-inflammatory painkillers, tretinoin tablets and other drugs. 1. Inflammatory infections: patients with swelling of the little finger is generally a common cause of bacterial infections, such as purulent dactylitis, inguinitis. At this time, we can use povidone-iodine to smear the wound, and apply fusidic acid cream, mupirocin ointment, supplemented with antibacterial drugs, such as levofloxacin or cefixime. 2. Gout: gouty arthritis can cause blood uric acid crystals deposited in the little finger, so that the soft tissue of the little finger edema and inflammation, it should be to lower uric acid treatment, such as taking febuxostat tablets, supplemented with non-steroidal anti-inflammatory pain medications such as loxoprofen sodium and so on. 3. Rheumatoid arthritis: when rheumatoid arthritis involves the little thumb, it can cause narrowing of the joint space of the thumb and localized swelling. Anti-rheumatoid drug treatment can be carried out, such as tretinoin tablets, supplemented by non-steroidal anti-inflammatory painkillers, such as diclofenac sodium. Note: patients with swelling and pain in the little finger, you need to identify the cause of the disease before following the doctor’s instructions to use drugs and other symptomatic treatment.