This question is almost impossible to answer without knowing why you are taking the medications and the risks involved with you not taking them. You should contact your PS and local doctor to clarify their instructions. Sorry I can't be more specific.
To answer the question regarding when you can resume your normal medication including aspirin, it depends on what type of medication you are currently on. In general, you should be able to resume all your medications after the surgery. However, with aspirin or any medication that is a blood thinner which causes your blood to thin, it will need to be discussed and planned out with your surgeon. Typically with aspirin, it depends on what the reason is that you are taking aspirin that will help determine whether or not you should be able to resume immediately after the surgery or if you would have to wait for at least a week after your surgery to resume your aspirin.Therefore to best answer this question, this is something you have to discuss with your surgeon before stopping or resuming your medication