Back in December, Kim Zolciak-Biermann called her eight-year-old son Kash the 'bravest boy I have ever met' as he underwent facial reconstructive surgery for injuries sustained after the family dog bit his face three years prior.And now the reality star has revealed the youngster has had to tough it out once more as he had to get not one, but two casts.The 42-year-old Don't Be Tardy star took to her Instagram on Wednesday to reveal that Kash had broken his arm before having an allergic reaction to the material of the cast which had to be recast.Scroll down for video She shared a cute photo with her 3.1million followers of herself hugging her third youngest of six children as he proudly showed off his right arm which had a bright orange cast.
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