My seven month old baby has developed red itchy eyes.doctor has given ciplox eye drops and allegra.when i stop med complaint return again.what to do?

Some basics: Red irritating eyes in a 7 mo can be from germs (would improve with the drops), airborne irritants (dust,smoke, fumes) which improve when you avoid them or airborne allergens, again that improve when avoided. It could be something as simple as reacting to the smell of fresh washed clothing (fumes) or your perfume. Detective work often solves this or it just disappears.