1.Pimples/ Acne/ Pus/ Boil/ Blister/ Corn/ Corns/ A Corny joke

2.Wax/ Ear/ Ears/ In one ear and out the other/ I am up to my ears in work/ I will play it by ear

3.Influenza/ Flu/ I was down with flu/ Plague/ Plaque/ Tartar

4.Tablet/ Pill/ Bitter/ A ...