13 month old with recurring fever

I have a 13 month old son that is now on his fourth fever (all have lasted a week before he was put on medicine), the doctors have put him on a different type of antibiotic each time. The first two times they said he had an ear infection, the last two times no one could give me a reason. He had a "fever seizure" with his last one. There seems to be a pattern, they put him on antibiotics, the fever goes away, the antibiotics stop, within two weeks the fever returns. He had blood work that came back normal, I want to demand further testing. I'm I right in my concern or am I just over reacting? What could it be? What should I ask his doctor to do if the fever returns?

[margypops]

A lot of children of this age get Fevers and very often the cause isnt known, it does sound like on going ear infections , maybe your Doctor will suggest giving your son Tylenol for the Fever but leave out the Anti Biotics for a while .

[nellie3110]

my son now19mths has been suffering fever every 2 weeks since may... it now december... he has 18 seziues all with temperatures.  doctors were more interested in treating seziure than what causing temperature... that hasn't worked as he had two seziures whilst on medication.  urine and blood coultures always come up clear.. he is generally a smart and happy baby and well developed.. that why no one was concerned.  only now are they doing more blood test to investigate further..hopefully we find something... if we can find what causing fever we can treat that and get my son off his medication.... please demand further testing for son...if one doctor doesn't listen try another... and keep diary of everything... each temp... each hospital visit.. and always keep copy of case notes they give you for your gp... it will make it easier for next doctor to take on your case.. hope all goes well....