Facial pores allow sebum to come to the surface from sebaceous glands in deep dermis. Hence people with oily and thicker skin tend to have larger pores. They are easily visible on the face and the only temporary solution is makeup.
Over the counter products and creams often give a disappointing result. A multi-modal approach is needed to target this problem.
As we now know enlarged pores are due to excessive sebum production, it takes a while for the sebaceous gland under the dermis to respond to treatments given. With continuous skin care and treatments, one can expect improvements in about 2 weeks to 2 months time.