Has anyone faced issues entering Thailand with prescription medication, specifically for cancer treatment?

The post discusses concerns about entering Thailand with prescription drugs, particularly for cancer treatment. Commenters share experiences indicating that carrying prescription medications generally poses no issues, especially if they are in their original packaging. They recommend having a doctor's letter and official prescription on hand, although many have reported never being asked for these documents during customs checks. However, there is a cautionary note regarding the strict regulations on certain drugs, implying that adherence to official guidelines is crucial.