### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have incessant itching around the rectal area and the surrounding skin in the crease of the buttocks. I an 54 years old in good health and shape and my occupation is a rancher. I have regular stools, no blood in the stools, no discharge from the rectum, no odor. The area is not warm to the touch. Once in awhile there will be surface bumps on the skin. The itching can be so bad that I will draw blood. At times it feels like a mosquito or some other insect biting me. The feeling is the same during the day and night. Have not had a solid nights sleep in quite some time. Seems to become more aggravated when I sweat. Even during now cool fall days and not sweating, the area is constantly moist. I have tried Desitin, aloe vera, A&D cream, Sensicare, have taken worm pills(work with cattle every day), the only thing that seems to take the edge off the itching is benedryl and otc triple antibiotic. Also, no difference when I am standing, sitting, riding in a vehicle , or horseback. Any ideas?

### output:

Thanks for asking in Chat Doctor Forum IN short: Pin worm infestation/fungal infection may cause these symptomsExplanation: As you told that the area you mentioned is constantly wet, fungal infection is a possibility. Even pin worm infestation can cause these symptoms as well. So pay a visit to your local doctor and get yourself examined and undergo investigation(Stool microscopy) to rule out worm infestation.  For the time being, keep the area clean and Chat Doctor.  Antifungal powder may help.  Good luck