Synonyms for Earache:

n.

charley-horse, backache, colic, electric shock, eyestrain, growing pains, bellyache. earache (noun)
otalgia.
otalgia (noun)
otitis, ear infection.
pain (noun)
torture, gripe, wrench, spasm, stitch, painfulness, anguish, pain, headache, throb, irritation, cramp, suffering, bite, agony, rack, bruise, Migraine, ache, chafing, pang, discomfort, injury, sore, torment, hurt, malaise, burn, crick, grief, stab, affliction, throe, wound, sting, infliction, misery, Back Ache, inflammation, smarting, distress.
state (noun)
otalgia.

Other synonyms:

charley-horse, bellyache, eyestrain, backache, electric shock, colic. growing pains. Other relevant words:
otitis, bellyache, otalgia, backache, eyestrain, colic.