Oh Pepper! I am so sorry to hear this terrible news. All I know about the treatment is that it is 2 shots like you said one following the other after 24 hours. Quanzhan is going through HW treatment with Zack. Maybe she can offer more advice.

Just know that you and LD will be in my thoughts. I hope it goes well. Treating this is the best thing you can do for LD now. Be strong!