Moist
It sounds like what it is and I feel like I can immediately feel it in my throat. Ugh, it skeeves me out.

Gristle
Because it's gross.

Gin blossoms
These both bother me because I immediately picture them. Something about skin conditions really horrify me.

Shingles
Maybe related to the skin condition but i also don't think thinking about shingles on a house. I don't know why, I'm weird. But I also just had to start scratching my face when I thought about this word. Yuck.