 [ Symptoms ] accidentally took too much blood pressure medication my husband accidentally took 2 doses of his high blood pressure medication should we go to the er [ Disease ] i cannot blindly advise you to self prescribe an antibiotic based solely on the color of your mucous mucous can be yellow simply from stagnation and congestion it does not mean that you have a bacterial infection of some sort that would respond to amoxicillin as you may know it is not possible to accurately diagnose you over the internet based solely on your brief posting because you are concerned and have a history of open heart surgery rather than treat yourself it would be prudent to be properly examined and diagnosed by a medical professional