Persistent, hard, and painful neck bumps should be evaluated by a doctor to determine their exact cause, which could range from swollen lymph nodes to cysts or deep skin infections. Because they have lasted a long time, avoiding self-treatment is safest. Depending on the diagnosis, a doctor might prescribe topical treatments like clindamycin or tretinoin for skin-related issues, or oral antibiotics if there is an underlying infection. For now, avoid squeezing or popping the bumps, and apply a warm compress to help soothe the discomfort. Please schedule an appointment with a healthcare professional or dermatologist for an accurate diagnosis and a safe, targeted treatment plan.