Dr Neeraj Nischal, Associate Professor, Department of Medicine AIIMS and Dr Anita Sethi, Head, Ophthalmology Fortis Gurugram answer your questions on whether to wear a mask or not. Much has been said about who needs a mask and who doesn't and whether healthy people should wear masks. Doctors also answered questions on how to shop for essentials and the precautions to take with packets, stressing on the fact that the person buying essentials should focus on hand hygiene and not touch mouth or face. Doctors also took a range of questions on whether the novel virus is airborne and how long it can survive on surfaces and what those with predisposed respiratory conditions should do in these times.