Okay, so I only recently started having disturbing thoughts and such, but what I have seen so far is that they target the people you care about the most and some of these thoughts are so terrible. But what I do when I get them is I tell my self, these thoughts are not true this is the OCD talking, I would never kill my family or touch a child, now for me those are my two reoccurring thoughts, I'm not sure what yours are. But just take a deep breath, and tell your self these aren't real, I am okay, I will be okay and these thoughts mean nothing. An try to get your self to believe it no matter how hard it may be, now about medication I'm not even on any yet because of how recent my anxiety and OCD have come up but talk to your therapist about getting on a medication that can help you control your intrusive thoughts:P I hope this helped somewhat.