It seems from history that you have cold
and upper respiratory tract
infection along with redness
and irritation in the eyes. This is usually because of conjunctivitis most probably because of viral conjunctivitis
associated with upper respiratory tract infection.
Though there is no specific drug for treatment of viral conjunctivitis and treatment is usually not required as the condition is usually self limiting and self resolving. However antibiotic eye drops are advised to prevent secondary bacterial infection, which is known to occur in most of the cases and responsible for symptoms. Hence i advice you to start using antibiotic eye drops as early as possible to prevent secondary infection and further complications.