Once you have gone through the process of an angiogram, your cardiologist will discuss the reports of the test. But you cannot go back home right after the treatment but have to rest for a few hours in the clinic and ask someone from your family to take you back home. Under normal circumstances, you will be able to resume your normal chores the day following the angiogram. The angiogram side effects would comprise of bruising at the site through which the catheter was inserted and it can also be a little sore after the anaesthesia is worn off. Your cardiologist may ask you to take some painkillers for easing the discomfort. In case the area was cut for inserting the catheter, then you may need to get the stitches removed after a week or ten days. But sometimes the bruise at the spot may lead to an infection and this is one of the angiogram side effects. If the area becomes red and tender, you should let your cardiologist know about it without any delay. He or she may prescribe a short course of antibiotics in order to cope up with the infection. Another important complaint by most patients is that they feel a hot and flushing feeling when the dye is injected. But this feeling wouldn't last for more than a few seconds and in rare cases, it is found to cause an allergic reaction. The complications are caused in the rarest of the rare cases and you can safely trust the process to get the condition of your arteries checked.