For multiple boils on your back, start by applying warm compresses for 10-15 minutes several times a day to encourage natural drainage. Wash the area daily with an antiseptic cleanser containing chlorhexidine or benzoyl peroxide. For targeted topical treatment, a prescription-strength antibiotic ointment like mupirocin can be highly effective. Because you have multiple boils, it is best to consult a doctor. They may prescribe oral antibiotics, such as cephalexin, to treat the infection from the inside out and prevent it from spreading. Please avoid squeezing or popping the boils yourself.

A small lesion or pimple on the penis can have various causes, such as blocked glands, minor infections, or sexually transmitted infections. Do not take antibiotics further or attempt to remove the lesion yourself, as this may cause scarring or spread a potential infection. Please consult your doctor or urologist to determine the cause and receive appropriate treatment. Keep the area clean and dry, and refrain from sexual contact until it has been evaluated.