I have struggled with OCD. Here are some things which have helped me:
1) the zen approach. It's just a thought. Maybe I'll do the extra precaution and maybe I won't, and either way is perfectly okay. This helps somewhat to detoxify the thought.
2) part of my health and safety issues are realistic (and I was afraid of both germs and chemicals). And other people kind of cannot engage in these conversations. In some basic ways, most people are fundamentally un-curious.
3) And if it's a longshot risk which might befall me, people are dismissive, in a way in which they're not dismissive if it's a longshot risk which might befall them.
4) So, it's going to take a while before I met people compatible with me. And that's okay. A little bit, this helps to give me a light touch.
5) I try and stay open to free positives.
6) Art, writing, other connections.
7) I try and learn useful health information. For example, if a child seems to be recovering from the flu and then relapses with a high fever, that's a danger sign. For that relapse may be bacterial pneumonia. Flu strips epithelial cells from throat leaving person more vulverable to bacteria around. And presumably this is the case for adults, too. But, people aren't all that interested even in this.
( So, yes, I do get pretty disappointed with people at times. )
9) And yet, the world will become more open as more people learn about and accept the autism spectrum. That people can be different in fundamental ways.
10) I can talk about some of my health worries in terms of sensory issues. This gives me another language.
11) And winding back to zen, which I think has a lot to offer in a thoroughly inexact way.