First it is important to understand the reason behind their negativity. See who the person is, whether he is an ex-employee of your company, an angry customer, a dissatisfied customer or a mean competitor. If it is an ex-employee or a mean competitor or someone with devilish desires, it will be in your best interests to block the person from your social media profile – This option is available in most Social Media Platforms today.
If the negativity is coming from an angry or dissatisfied customer, use it to set an example to the other people in social media network. Try to find the reason of the customer’s disappointment, give a valid explanation and try to resolve their problem in front of everyone. This will set a positive vibe amongst the viewers in your social media profile; you may as well earn a lifelong customer and convert a few leads in the process.