A good wash in the morning is essential Showering or bathing after physical exercise is also important. See a doctor. In severe cases of acne the walls of the sebaceous gland break, spilling the contents into the surrounding tissues. This leads to a much larger spot which becomes swollen and reddish-purple as some more blood moves in to try to fight the infection. Squeezing and picking can also easily produce spots like this as the infected mixture is forced into the skin instead of out of it.
Some soaps contain antiseptics which are claimed to destroy the bacteria which cause spots.
Yhis is a myth - most cases the bacteria are deep in the sebaceous glands and are therefore out of reach of most soaps. It used to be said that eating chocolate or lots of greasy foods made spots worse - this is not true. Dirty teenagers get acne. This is a myth - you should now understand the cause of acne. Produce an A4 flyer, aimed at teenagers like you explaining how to look after your skin.