Any danger is draining own scalp cyst?

[AudiMan9000]

I had a cluster of sebaceous Cysts on my scalp which I had to pay privately to have surgically removed. Years later, another one has appeared on the other side of my head and has grown quite big. I can’t afford to pay to have it removed like the last ones. I’m tempted to sterilise a sharp needle and poke a small hole through the scalp so I can squeeze the contents of the cyst out. I know that this wouldn’t be a permanent fix and it would re-fill itself, but I just wondered if this was a safe/sensible thing to do for some relief? It is a rock hard highly pressurised lump under my skin and I don’t think it would take much to burst it. My GP has confirmed that it is a seb cyst and that there’s no funding to have it removed on the NHS unless it’s causing me problems which it isn’t.

[AudiMan9000]

Mr Pointy said:

If you're going to do it at least buy a proper scalpel & sterilising wipes so you don't end up with an infection.

https://www.amazon.co.uk/Swann-Morton-Disposable-S...
https://www.amazon.co.uk/Universal-UNG603-Alcotip-...

Going by the Dr Pimple Popper videos on YT you'll need more than a needle hole to get the gunk out.

If I use a scalpel it’ll need stitching back together! Don’t see how a little pin hole won’t do the trick when it’s so highly pressurised.