Cairo airport authorities 
started on Thursday applying a decision to allow only Qatari nationals who applied for visas in advance to get into the country.
Qataris can apply for a visa in advance at the Egyptian embassies abroad.
Qatari nationals married to Egyptians or having Egyptian children, as well as Qatari students are exempted from this decision but they ought to get a three-month tourist visa in order to enter Egypt. 
Scrapping visa-free travel for Qataris was among the the punitive measures taken by Egypt against Doha.

Source: Mena