As i said earlier for some one,who also has been suffering from same c/o, This is most common in puberty attaining people.Fue to change of harmone levels,excessive fat,Oily skin,heriditary,any Allergies..etc all r reasons.Try to wash ur face often with any mild soap often,Apply Neem leaves paste+a pinch of turmeric powder r mint leaves paste eith few drops of Lemon juice&Applying Alovera gel helps to decrease the intensity.With detailed H/o ur c/o. .Homeopathy can do well.