Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 3 months ago

Bismihi ta'ala

If you touched the script of the holy Quran without wudhu', and accidentaly, then there is no problem or sin for that, and you do not need to do anything. 

And Allah knows best.