Visa issue for my son

my son will go back to the philippines on march 4 2013.he came here in hk last dec 6 2012.his holding a tourist visa 90 days of staying here in hk.he need to go back to philippines on march 4.the problem is i want to apply my son a tourist visa soon as he arrive in philippine .to come back here in hk within 2 weeks with a visa again.can the chinise embassy give my son a visa?thank you