Assuming your Aunt is on a B1/B2 visa, the only major procedure she has to do at the airport is give back her I-94 form at the airline counter before departure. This has all the details immigration would require to close her file. (Usually the airlines would collect it from her, but Qatar Airways has really sub-par staff working at both NY and Washington airports, so make sure she knows about the fact that she has to return the I-94.)
Also, do ensure that she has a copy of the Qatar Visa with her at all times.
Assuming your Aunt is on a B1/B2 visa, the only major procedure she has to do at the airport is give back her I-94 form at the airline counter before departure. This has all the details immigration would require to close her file. (Usually the airlines would collect it from her, but Qatar Airways has really sub-par staff working at both NY and Washington airports, so make sure she knows about the fact that she has to return the I-94.)
Also, do ensure that she has a copy of the Qatar Visa with her at all times.
Not sure about Dead Sea Salt..sorry!