Hi JG,
too funny, we call all our kids 'monkeys' :)
anyway, when my guy gets teeth in, its like 4 at a time, seriously. he is a nightmare. we have found tylenol to be our only saving grace. Motrin is too harsh on his stomach (though other moms swear by its effectiveness). Orajel does a great job of numbing every area of his mouth but the tooth i'm aiming for. LOL! (seriously, its an art form using that stuff). so for us, its a waste of money. When he is actively teething, i give it to him every 6-8 hours, until i see that little pearl bust through the gum, then i just give it to him when he's chewing his hands, or waking during teething.
right now my guy is getting his 2 yr molars (at 16 mo.) so we're back in the tylenol phase...
good luck...