My ear is infected and throbbing, how can I stop the throbbing?

Antibiotics. The throbbing is a result of the fluid/pus and the "pulse pressure" within the ear from the blood vessles that line the middle ear. Pain can be helped with 1) motrin/tylenol 2) topical anesthetic (auralgan (benzocaine and antipyrine) - rx only) 3) antibiotics.