"Thank you all for your well wishes and support," Arnold tweeted to her followers Friday.
"Thanks to everyone for your continued support. We appreciate everyone's generous well wishes and prayers. We will fight and we will win!" her devoted husband posted.
The stars of TLC's The Little Couple took their medical struggle public in the hope of helping other families deal with cancer.
They're bravely planning on making her treatments part of future episodes of their hit reality show.