Piece of skin hanging from my anus that's sore and itchy.... Haemorrhoids??

I'm hoping someone can help me find a solution to this. For the past month and a half I have been having random tingling/itching sensations all in different areas of my anus.I've also noticed a piece of skin hanging from the anal area that hurts when I touch it and that itches sometimes as well. It's mainly itchy around the skin tag. Sorry for being graphic but it also feels really wet and moist in the anal area than usual. Sometimes when I'm scratching I get this little greyish mucous like substance that get in my finger nails that I wash off. I've tried some haemorrhoid creams etc but it didn't seem to have an effect...