Tips for washing under the neck?

Aly • 💞 mama bear to 💜Olivia 1/23/17 and 💙 Charlie 8/21/18

I can't be the only one struggling with this! My daughter's neck is ticklish so I have the hardest time getting all her little folds and creases clean. If I only had another set of arms I might be able to but she squishes her little chin right down when I try to get in there. And she spits up a lot so it always stinks too 😔

Any tips would be super helpful!