How long do I have to wait after my ultherapy treatment to have a lymphatic massage on my face and neck?

I recommend following up with your practitioner about their recommendations for massage following your ultherapy treatment. It should be fine to have massage a few days after your treatment. It can take between 6-12 weeks for final results with Ultherapy. Keep in mind, a combination approach would give the most improvement with Ultherapy. I recommend Ultherapy with RF treatments, lasers, microneedling/PRP or sculptra to get increased collagen, tightening and improve skin tone.  I recommend getting a formal evaluation with an expert. Best, Dr. Emer

There is no rule as to when to begin massage. After Ultherapy, your
face will be somewhat tender to touch for a few days. This is most
common, I find, in bony regions, such as the cheekbones and jaw line.  I
would recommend waiting a week, as this should be more than enough time
for tenderness to resolve. 
Hope you have amazing results!
Dr S