When on your epidermis the pus-filled red spots appear then these are known as acne. If greasy secretions plug with the pores of your epidermis, then this type of problem can occur. On the upper arms, shoulders, back, chest, neck and face this problem can occur. There are several other factors that are responsible for this problem. Like at the time of pregnancy or puberty some hormonal changes occur due to which this problem occurs. Some hereditary factors are also behind the occurrence of this problem. If you will visit the best dermatologist in Dubai for acne then you can get the proper treatment of this problem.