@sadxblush and @modestmouse99 welcome! I am so sorry you both are going through this obstacle in your life.

Here is an article and case study surrounding PSSD:
"There is still no definitive treatment for PSSD. Low-power laser irradiation and phototherapy have shown some promising results. Conclusion: PSSD is a debilitating condition that adversely affects quality of life. Aug 1, 2017"
Post-SSRI sexual dysfunction & other enduring sexual dysfunctions:
https://www.cambridge.org/core/journals/epidemiology-and-psychiatric-sciences/article/postssri-sexual-dysfunction-other-enduring-sexual-dysfunctions/8343798C6C29E850661020EF0CEA8968
Feb 2019 -- Towards Improving Post-SSRI Sexual Dysfunction by Using Nutriceuticals: Lessons from a Case Study: https://pubmed.ncbi.nlm.nih.gov/30640584/

Has your physician spoke with you about laser phototherapy at all?