What oil or somthing like vicks can you recommend if your child have cough? My dau is g6pd so she cannot use menthol..thanks!

No need to use oil or anything for your G6PD-deficient child, in my opinion. Just follow your doctor's prescribed medication and it'll settle her. My baby also has G6PD deficiency and as much as possible, we avoid what we can avoid and no other add-ons in her medications