How to use ls command to show all the files including hidden files, but not showing the files named '.' and '..'

The working directories contains several subdirectories, and each subdirectories contains some hidden file starts with '.'. How could I use the ls command to display all the files including the hidden file, but I want to exclude the files name as '.' and '..'? I tried ls -a | grep -v '^\.' but it does not show the files in the subdirectories. And the option -ignore does not work, too. Thanks in advance