let me explain like this for you Amelia.
Anal itching also called as pruritus ani,and it has many causes,
First of all let me list all the causes so that you should know what possible reasons can be.
Dry skin(excessive washing with soap or age related)
Chemical irritants ie soaps,colognes,douches,colored or scented toilet paper etc
Hot sausy foods or foods with some chemicals.
Medications ie some antibiotics can cause such problems
Overusage of laxative medications
Infections ie STD sexually transmitted diseases or parasitic causes ie pimworms
Yeast infection may also cause itching
Frequent constipations or forced bowel passing may result in minor abrasions or tears that can result in anal itching
As a rule treating underlying cause is the baseline treatment in relieveing from symptoms of anal itching, proper clinical examination by your doctor or proctologist is necessary,
My advice to you!
Bleeding in your case may be due to abrasions,so a proper clinical examination by your doctor is must.
Use of any OTC medication is not recomended for anal itching unless directed by the doctor ,creams or ointments can worsen the situation and help in progression of itching,irritation thus contributing to the present problem (i suggest you to stop using OTC products)
Avoid touching or scraching the affected area this will not help but can produce small abrasions and thus inflamation.
Stool test for parasites is must in your case.(i hope tomorrow doctor will suggest that)
Since you are having this problem from sept 2008, and its bleeding sometimes, in addition to baseline therapy(ie directed towards the main cause) a symptomatic therapy is required ,that may include anti-inflamatory agents ,and if suspected yeast infection then antimycotic therapy will be required on prescription of your treating doctor.
I give you a link by specialist of Mayoclinic with recomended treatment options and prevention methods and home remedies for your problem.PLEASE READ THROUGH.
i hope this information will be useful
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