ahhh.help.. butt rash.

i woke up with a bump on my left butt cheek. it itched. then it seemed fine.. then the next morning i woke up itching again. this time it's two bumps on the top of my butt cheek by my crack. then i just kept itching and itching now my left butt cheek is about 3 inches of tiny red bumps but i've itched so much that its raised almost like a platform or something. and i have bumps also lining my buttcrack. where the first bump was now there is a small bruise. i started out thinking this was a spider bite.. but why would it cause a rash and spread.. i'm not sexually active so it couldn't be an std right? i sit alot.. does it have to do with sitting down too much? or maybe heat rash. ahhhhhh.. i've also changed laundry detergents.. but why would it only affect my butt? i could change my bedding.. but then again.. i don't sleep naked.. so how would that affect my butt? my last conclusion is that my dog just had fleas.. and my friends cats had fleas.. could these be flea bites? do flea bites itch? what is going on with me and why do i have a rash on my rear.. if anyone has any insight.. please feel free to comment!!!! :) i'd really appreciate it!

[BhumikaMD]

Hi,

There could be several causes for the symptoms you are having. You should reconsult with your doctor to rule out the following possible causes -

'Perfumes, chemicals, or dye on toilet paper can cause an allergic reaction.

Moisture from sweat or diarrhea may cause itching. If the anal skin stays wet, the skin begins to break down.

Some foods irritate the anus when they are expelled during a bowel movement. The most common culprits are caffeine, chocolate, beer, nuts, dairy products, and spicy food.

Infections such as pinworms, yeast, and genital warts can cause itching.

Hemorrhoids, which cause painful swelling of blood vessels in the anal area, can cause itching.

Cancer, in rare instances, may be a cause.'

Therte are certain factors which predispose to the risk of developing anal itching as a symptom.

'Factors that put people most at risk for anal itching are as follows:

Diabetes

Recent antibiotic use

Chronic dry skin conditions such as psoriasis and seborrhea

Profuse sweating.'

Do discuss these with your doctor and exclude any possible causes in your case.

Post us if you need any further information and let us know about how you are doing.

Regards.