Symptoms: Acne is a skin disease affecting the sebaceous gland (glands which produce an oily secretion). These glands are especially large upon the nose where there openings from pits that are clearly visible. There appears to be an individual predisposition to the disease and is dependent on the development of the sebaceous glands which takes place at the ages of fourteen and twenty. The condition is often associated with dyspepsia, and lack of fresh air and exercise. In women it tends to become worse during menstruation. 

The eruption itself consists of little black spots which indicate the mouth of small sebaceous ducts chocked with dust or dirt, from which a long, wormy looking fatty mass can be squeezed; hard pimples generally showing one of these blackheads on the top; little pustules surrounded by a slight degree of inflammation, which gradually grow, burst and then heal; and hard lumps, sometimes half in inch in diameter which last for weeks or months, slowly suppurate and leave a permanent scar.