could u explain me

[confusedperson150]

Dear doctor, could you please help me to calm down :)OK..first of all, it will sound stupid, but I am must ask..its regarding the reuse of the razor blade..i was doing henna drawing (some kind of not lasting tattoo, that is done with henna and sticks, not with the needle) on the street, and before puttitng the henna drawing, on my arm,owner used the old blade, to remove hairs from my arm.now that i think, i dont know what i was thinking then, cause even the person who runs this and was doing the drawing to me, doesnt seem like he has a neat past. on blade u couldn't see no evidently blood, but it was for sure old, cause you could see how the razor blade has oxidised, .on the spot where he passed with that blade, i have noticed i had a small wound, size of the small pimple,.that happen 5 months ago..this pimple is still here today, so it wasnt a wound, cause it would have gone in this period, but its small and red, like its under the skin..and my question is, was i exposed to hiv, cause i dont know when he had his last customer? and this wound, if i could call it like that, could it be dangerous, if it was so small?? on the blade i couldnt see any blood, but i am scared what if, the blood was under the blade, cause it looked very old and reused many times..i mean even if there was some blood, would i be in dangeour?sorry, i am a littel bit paranoic, i know u will say that, but could u give me an short answer

[confusedperson150]

and blade could have some small unvisible blood, but my wound was not entrance for anything??

[confusedperson150]

so there is no need for testing?? i just want to explain to myself..he passed through this small wound, lets call it like that, eventhough it is still here after 4 months, so its not a wound..i am sorry for bothering you, i know you have many worried people, but it would take just a minute to answer