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Your symptoms do suggest of ailments of the rectum
or the anus, commonest amongst them being Hemorrhoids ( piles ) or fissure.
The burning sensation or the pain is due to the irritation of the raw area left over by Piles or more commonly fissure.Hence cut down spicy and hot foods also use fiber rich food or laxatives to prevent constipation
which can worsen the condition.
Visit a General surgeon
for the same , for confirmation of the diagnosis and do not worry the treatment for piles are more advanced now ,its through Painless Laser
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