It can be due to boils, bullous staph infection or some viral infection since it is spreading so fast. A boil generally starts as a reddened, tender area. Over time, the area becomes firm and hard. Eventually, the center of the abscess softens and becomes filled with pus. Finally, the pus "forms a head," which can be surgically opened or spontaneously drain out through the surface of the skin.
Apply warm compresses on the bumps and keep the area clean. Drainage o is done only when it becomes soft and forms a head. Give some over the counter pain reliever and consult a doctor as soon as possible for examination and antibiotics prescription. If there are recurrent boils, then please get your blood sugar levels estimated.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.