Seventh month out-of-date have a constantly runny muzzle?

My seven month old has had a runny muzzle for about a week and a half now. I'm wondering whether or not I should pilfer hm to the doctor. He basically just keeps getting these massive (green) boogers surrounded by his nose. He doesn't have a fever, he seem fine. I guess it could be allergies...Anyway, I use baby saline spray a few times a day and aspirate his nostrils, but they still keep forming. What should I do?
Answers:    Take him to a MD, sounds approaching a possible sinus infection. Maybe not though...

I use this thing called NoseFrida, it is great, easy to use and move updated than a bulb, and less crying from what I see.

Also, could be allergies, my neice had seasonal allergy's at 6 months and by 9 months was on zyrtec, out of danger for infants 6 months and older, when advised by an MD ONLY!

Dont try any new meds lacking a MD asking you to.
Green boogers are a sign of infection.
YES you should take him to the doctor.

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