Weird thing on my arm. Insect / spider bite?

[Mr M]

I have this thing on my arm for about 1 week already. I don't know what it is exactly. From what I found online, I think it is spider bite, the bite shown on this article (https://thetab.com/2014/09/26/a-venomous-spider-bit-me-in-halls-and-now-im-scared-to-sleep-21598) looks very similar to the one on my arm. Additionally, I got a spider on the curtain of my room, so I assume it bit me while I was sleeping.

Anyone has experienced something like this? What should I do?

[Projectile Vomit]

If you are concerned at all, you should see a doctor. No one on this board is qualified to diagnose your problems through the internet.

My dad had what he thought was a spider bite that would not heal. Turned out it was melanoma. After a three year battle against that cancer, he died in 2011.

[FRANCIS HOWARD BOND]

Please take Eric's advice it could be important!

[norawnofun]

I´d second the doc, just to be sure. But I also had something that looked like that. First I thought it´s a pimpl, but one of them turned black rather than white. I also got a bit concerned. I had 3 in almost the same location some time ago. It took a few weeks until these "volcanos" looked better. 1 is gone completely, the other one almost and the 3rd most prominent one left a white spot. Pretty sure these were not spiders, as there were none where I lived. I had thought that these could be diet related, oxalates was one of my suspects, as at the time I was eating quite some chocolate and I know that oxalates can cause major skin issues.

[dariorpl]

I would try putting raw honey on it.