help!! not sure what this is

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ive been feeling some pain and sensitivity when i wipe for about 3 days now. i just took a look and saw this singular white sore and now im worried. it is only painful to the touch and i forget about it when im not wiping. theres no itching or burning.

Hi. Did it go away? Do you know what it was? I have the same problem. I’m so terrified.