if they are down one side of your face, is it the side you rest on your hand, either leaning on your elbow, or phone contact? In which case it could be nail varnish, handcream, washing up liquid, the soap in the hand dispenser at work, maybe even the stuff they use to clean your desk at work. Or it could be your phone, at home or work.
Young lad in our office has been plagued by spots, and all of a sudden his face is clear and lovely.
He's been washing his face with...antibacterial hand gel! Then rinsing it off a warm water, and using a mild moisturiser to counteract any drying effect. It was his gran's idea