Gonna comment this here as well, here's a possible solution...

<a rel="nofollow" class="external free" href="https://fallenlondon.wiki/wiki/Active_Access_Codes#Aunt_at_your_Door">https://fallenlondon.wiki/wiki/Active_Access_Codes#Aunt_at_your_Door</a>

This access code removes all your nightmares. It can only be used once, as per all access codes. So if you haven't used it yet, spam the action in Avid Horizon as long ss you want, then use the code right before returning to London.

Should work, I think. Doubt anybody has tested this. I've used it already, unfortunately...