Are lymphatic massages necessary?

so i see this huge debate between surgeons, some say you need to be massaging one day post op and pretty much everyday for a week or two. but most surgeons in my area just recommend compression and lymphatic drops, cause your body will drain on its own. i’m not a doctor so idk but in a way it makes sense to let your body just heal vs applying all this pressure to inflamed areas. is massages even necessary or just a gimmick so you spend more?