Hello, I have been getting these pimples/bumps on my scalp that range from the size of a pencil eraser to about a nickel or dime. They get inflamed and go down on their own in about a week. Once the inflammation is gone, it leaves a bald spot where the bump previously was. Will the hair grow back? I am only 20 years old and I take care of my self pretty well. Are there any remedies for this? Please get back to me asap.