Peritonsillar Abscess

I recently was diagnosed with a peritonsillar abscess.  (This is the second one I've had.)  The doctor drained a little bit of the pus from the abscess via needle aspiration, told me to continue taking Keflex, and is seeing me again in 2 days.  However, my throat still feels pretty uncomfortable, and I'm afraid that he did not drain enough.

Is this normal, to only drain a little now, and then to drain the rest a few days later?  Also, should I get my tonsils out?  I am 23, and the doctor said it was "brutal" at my age.  Thanks.