burning, itching in anus

i am a 26 year old male, a bit overweight. and for the past month and a half or so i have been having a burining slightly itching sensation on the inside of my anus everytime i excrete.and sometimes in the afternoons around 4 pm i feel an overwhelming burning itching sensation again.i've noticed that on the toilet paper after excreting there is slight pink on it.i've also noticed that when i sit on my motorcycle after it has been parked in the sun it provokes the burning aswell. i did a stool test and the only thing it says is that i have 3+ bacterial flora and 2+ yeast.the rest is negative.i would like to know what i might have so that i can  hav an idea of possibly where to go or what to do.i have no stomach pains.

thanks so much in advance

[mammo]

It sounds like you have hemmorrhoids, which cause itching.  Itching causes scratching which cause a little bleeding from irritation which causes burning.  Buy some Cortizone 10 cream and you will get immediate relief from the itch.  It comes in a tube small enough to keep in your pocket to reapply throughout the day, and make sure you keep the area clean.  Try Preperation H to treat the hemmorrhoids, but not their itch cream, I have found it not to work as well as Cortizone 10 cream.  Hope this helps.