People take all kinds of supplements: everything from Vitamin D to lavender oil capsules. If you have a fear of something and you know, rationally that there’s something disproportionate about your fear try doing this. First of all, don’t dismiss this fear. Invite it into your thoughts carefully, like you might let someone into your house who’s come to repair something. You wouldn’t leave you purse on the table where they were working unattended, would you? What else might you not do? Let your mind get into ‘safety mode’.
Once you have introduced the thought let another one in that doesn’t feel connected, and which you can do something about. Cook something, for example. Watch something. Anything that really engages you. Don’t let your mind go back to the original one apart from for the odd glance now and then.
After a while see how you feel about that thing you fear. Maybe you’ll fear it less. What other emotions come up after you’ve done this. Notice them. Then get on with another thing. Whatever you do … do SOMETHING. Just make sure it is very low risk indeed.