My daughter is 2 1/2 and had a cough and fever for 5 days, took her in and she was diagnosed with pneumonia, given omnicef. After 2 doses broke out in hives everywhere, one dose of Benadryl relieved hives. Took back in, given augmentin. After one dose broke out in hives again. Wondering if hives are from the pneumonia, omnicef, or augmentin and if I should continue the augmentin and just continue the Benadryl?