Disturbing dream

Hello everyone, I am not sure if this is the right place to discuss this but believe I am experiencing PTSD from childhood sexual trauma that is barely surfacing. I would like to share a disturbing dream I had...I'm trying to look at it with a curious mind and make sense of it so I welcome any opinions or advice...Thank you in advance...

My dream was about my dad, who has passed away for 7 years now. He died of cirrosis of the liver when I was 14. I dreamed that my dad was still alive, but we couldn't find him for some reason. Like he was just lost or something, we were all worried so we searched for him for several weeks. All of the sudden my partner tells me my dad is probably in a certain room in the house. I open the door and my dad is there, laying on the floor...there is trash and clutter all over and he is laying in fluids, I'm not sure what kind. He has a shirt on but no pants and he is naked. Then my husband doesn't explicitely say this, but he alludes to him and my dad having sex, that is why my dad was laying on the floor...?

I'm so confused why I would have such dreams, this is not the first dream like this. I've had several dreams about family or loved ones that are similar and have a weird sexual nature. Its very disturbing to me that I have these unconcious thoughts about my family, does anyone know any techniques that might help?