Bringing medications into Singapore

[Nancy I]

Hi, I take prescribed medicines on a daily basis. I will need these meds as I come into the contry and enough not to see a Dr for a while. What paperwork will I need to do this and not have problems with immigration?? Also, I herd that if I even bring tylenol / advil into the country I will need prescriptions for those...is that true??? Thanks for your help!