Melissa Gilbert returned to social media four months after her husband, Timothy Busfield, was accused of child sex abuse. The “Little House on the Prairie” actress shared a post on her Instagram account on Tuesday announcing that she’s hosting an Instagram Live on her company Modern Prairie’s page on Friday. Her post, which promoted her business’s Get in the Picture campaign, included a photo of two crochet dolls of Gilbert and co-founder Nicole Haase and a regular photo of the pair. Melissa Gilbert (seen above with business partner Nicole Haase) shared her first post on her Instagram account since January, the same month husband Timothy Busfield was accused of child sex abuse. melissagilbertofficial/instagram Gilbert used her post to promote a new campaign for her business, Modern Prairie. melissagilbertofficial/instagram Her caption read, “That’s right. I’m back. See you Friday!…