Please take your child's temperature and tell me what his temperature is now.
Listen to your son's chest and tell me if you hear any crackling noises (listen with your ear on his back on each side of his spine near his shoulder blades and also listen in the front near his nipples. Do you hear loud crackling sounds or any unusual noises? Let me know what it sounds like.
Is your child urinating normally (at least 3 times per day) clear urine?
Is your child drinking at least 1 glass (or bottle) of water or fresh juice every hour?
Is your child alert and active or is he lethargic?
How long has your son been tachypneic (rapid pulse)?
Have you noticed that your son has a yellow or greenish colored nasal discharge?
Because your son is lethargic, tachypneic, urinating less than normal, and he is not drinking as much as usual I recommend that your son be examined and treated urgently in the ER. He may benefit from supplemental oxygen, intravenous antibiotics, and IV fluid therapy.
If you have any questions please ask me.