fan
箑 centers on a hand-held fan, typically made of bamboo or similar materials, used to create a cooling breeze.
箑 combines 竹 (bamboo) with 疌, which likely contributes a phonetic element. The character refers to a bamboo fan, consistent with the material used in traditional fans.
The bamboo top 竹 suggests the material, and the lower part 疌 looks like a fan's frame with a handle and spreading blades. Picture a bamboo fan opening to create a breeze.
For ソウ, imagine the sound of a fan softly sweeping through the air: 'sou' as in a gentle breeze. The fan's motion makes a soft 'sou' sound, cueing ソウ.