The eye symptoms of your wife is most likely a kind of viral or bacterial infection. the best advise is to have it seen by a doctor. However, if going to the doctor is extremely difficult wash the eye with a cool water and keep it clean. Try the use of an eyedrop 2-3 drops every 4 hours. You may use erythromycin ophthalmic ointment twice a day (though not so good idea as we do not know if the cause of infection is bacteria). If no noticeable improvement after 2-3 days, then you have no other choice but you need to have the doctor see it.
For proper use of eye drops and ointments, this link will be helpful:
Take care and Happy New Year!