Some cases will need to be hospitalized: (just think of messed up vital signs, comorbidites, etc.):

-systolic pressure < than 60
-pulse > than 140
-PO2 < than 90% or 60 mmHg
-presence of an abscess or pleural effusion
-metabolic abnormalities
-other diseases also present: CHF, renal failure, malignancy, diabetes mellitus, COPD
-is oder than 65 y.o.
-social situation messed up

If patient does not need to be hospitalized, you can give antibiotics:

Less than 60 y.o. and healthy adult: (young people EAD a lot):

-erythromycin
-azithromycin
-doxycycline

Over 60 y.o.: (old ppl listen to FM radio and are from a 2nd generation):

-fluoroquinolone
-macrolide
-2nd generation cephalosporin

Children (2 months – 5 yrs)  (little kids on high doses of sugar like to mock .. amox):

-high dose amoxicillin

Older children:  (macro = big = older kids growing up feeling big):

-macrolide