let's take a review of products & remidies that cure open pores
Many companies which produce products , claim that they can totally reduce extra large facial pores
But,the most of the times these products or remidies don't helps us to minimise pores and they are not helpful as much as we want them to be and don't give 
so,how to treat open pores?
First of all the most important thing to do is to find the roots of these problem ,the reason of their development and their wideness
what are pores,?reason behind their wideness:
Pores are the tiny holes on our skin that allow sebum to be released on the surface. So, what's the problem? Once in awhile these miniature holes aren't so minuscule and they become visibly apparent, which can be a direct result of genetics , excess oil and debris, or agging
Open pores are the dilated opening of oil glands concentrated mainly on T-zone and surrounding cheeks. They occur because of unchecked oil secretions at the younger age and get worse when your skin gets lax in old age.
types of open pores:
1- O shape pores
It is mainly caused by hormones and it is very common for people who have oily skin type. These shape of pores are usually formed when we are going through puberty during our adolescent. Our hormones will lead us to produce excessive sebum which result our pores to be clogged up.
2- U shape pores
U shape pores are usually caused by dryness.
it is more visible than other shape of pores.
3- Y shape pores
Y shape pores are caused by aging and lack of nutrients.
absolute ways to treat open pores
Skin care regime and home remidies are not good enough to cure these pores the best alternatives are procedures .Such as
Chemical peeling (salycilic acid)
LASERS
ultra former technalogy
Botox
Drema roller