All deep with swelling sounds like a shao yin pulse, so yeah, ZWT sounds good. However, if that isn’t producing sufficient results, then MHFZXXT does also fit the pulse, providing there aren’t too many signs of floating yang, if there are, you could focus your ZWT more on upper body swelling by adding XR (FLXRGCT). A back up option to this is to try approaching it as a Shui Qi Bing, and give FJHQT. If that doesn’t do it, then you could try combining FZ and FJ&HQi approaches together (I’d typically go ZWT+FJFLT in that case, as though the swelling is more upper body, the DZ in FJHQT doesn’t really seem right with a ZWT). Though I’d try them alone first.