Although amoxicillin is also a semi-synthetic broad-spectrum penicillin drug, but not necessarily exactly the same as penicillin, that is, allergic to penicillin, and not necessarily 100% allergic to amoxicillin, if there are no obvious clinical symptoms of discomfort after eating, you can not worry, as long as you pay attention to drink more water and observe the changes in the condition can be. If there is chest tightness, difficulty in breathing, drop in blood pressure, pale face, weak pulse or even shock, the patient is considered to be allergic and should be sent to the hospital for timely treatment, rehydration and anti-allergic treatment such as epinephrine and glucocorticoids. It is still recommended to prohibit taking it.