Pustules, pimples, whiteheads, blackheads, nodules, and cysts are all signs of acne, a pilosebaceous gland condition. The lesions often affect the face but can also affect the upper back, upper arms, and upper chest, as these areas have sebaceous glands. The best acne doctor in Gurgaon from Citrine Clinic explains that although middle-aged adults may be affected, the skin condition is...