👉 Arena pimples, also known as cystic acne, are a severe form of acne characterized by large, painful, and often inflamed lesions. These occur when hair follicles become clogged with dead skin cells, oil, and bacteria, leading to the formation of pus-filled cysts beneath the skin's surface. The blockage can cause the surrounding tissue to become infected, resulting in significant swelling, redness, and pain. Unlike regular pimples, arena pimples are deep within the skin, often causing scarring if not properly treated. They can be particularly challenging to treat due to their size and the potential for deep infection, often requiring medical intervention such as antibiotics, topical treatments, or even surgical removal.