Drug allergy, sensitivity, intollerence?
What is the difference in the three? How would I know if I was allergic to a drug? Dr in ER said it wasn't an allergic reaction (Keflex, and I was dizzy,nausiousand itched on my face and arms) but that is one of the things to look for in allergic reaction. Was it the time of onset (it was a few days), the degree of "dizziness or nausiousness", or what? Just curious.