There are some folks who have terrible allergic reactions to "spider" bites/stings.
Where as what often happens is partial paralysis & stiffening of flesh, skin & muscles.
Unfortunately I'm one of those people.
Fortunately after my first bad encounter, there existed an anti-venom at my doctor's medical institution. Mostly because these spiders genus are so common.
Any way, since then I've been very careful around spiders & have read up a bit on common varieties in areas I am living in or will be living in. Due to my allergy.
Most are harmless, but there are a few that I simply loathe.
The last few times I had been stung, by suspected "most hated" varieties. I usually take drastic measures like bleeding out the area of the bite to remove the contaminant (venom). Sucking it out and spitting it away is normally the order of the day when it happens.
There were a few times I had to make an incission to coerce the blood flow.
Given the choice of letting it run its course until I can get proper medical treatment.
I prefer to attend to the former than having to bear with the latter.
The eventual stiffening is usually restricted to a considerablely smaller area of the bite. The healing process like wise is faster.
In some people if you don't get proper treatment - in time, the result can be an amputation or living with limb that isn't functional other than for personal reasons (like I'm not ready to part with it).
Early on before I learned of my spider allergy, I had gotten used to removing splinters & the occasional stray BB or pellet when I was a kid. So I'm not as squeamish as others when it comes to making minor cuts to remove a foreign object.
If its not immediately life threatening or is lodged in really deep like say a bullet or shard of glass,... I'll go & have a phycisian do the intricate cutting & picking.
But due to this self relliance attitude of being reasonably prepared, I always have a sharp blade either on me or easily accessable. Hence my preference for a "Leatherman Pocket Tool".
*Aye, I was in the boy scouts too. My scout master was a certain burly Marine Capt.
But it was my father that taught me to not be affraid of doing what you gotta do, especially if you can do what you need to do "yourself".
When at the tender age of 4 I had some glass shards in my foot. My dad dug it out with his pen knife. Of course it did help that my dad was also a fire fighter/paramedic.
I'm sure other dads would just stick a bandage on and take you to the nearest hospital for non emergency treatment.
Unlike a lot of other kids, my dad gave me my first pocket knife at age 5, so I've always had a "utility" knife ever since.