Should i just ignore it next time and it will go away?
Hi, I see you've just joined, so welcome to the forum.
The answer depends on a lot of things.
Am I right in thinking you're recently dx'd and still getting used to things?
Fake hypos can happen shortly after dx when your body has become accustomed to much higher levels and takes a bit of time getting used to lower levels, so 5.8 might give you the wobbles even though it's nowhere near true sub-4 hypoland.
How you treat it, though, depends on what caused it.
If you've eaten in the last few hours and still have a fair amount of active insulin on board from your last pre-meal injection, and if you've miscalculated that injection, a rapid drop when the excess insulin kicks in can easily give hypo feelings, so an ice-cream, as well as being tasty, can be a good call. Your average ice-cream is about 25 to 30 grams of carbs, which is probably overkill for most situations, but if you're newly dx'd, have lots of iob (active insulin on board) and are unsure about dosing and insulin activity, better safe than sorry.
If, though, the hypo is appearing more than 4 or 5 hours your last injection, when iob is reaching tail-end activity, a 25g ice-cream is probably way too much - a dextrotab or two, 3 to 6g, would be enough to take the edge of it.
Overtreating hypos with too much carbs is one of the main reasons why T1s end up on rollercoasters. Be cautious when starting out and overtreat, but when you get more experienced with it, play about a bit more with one or two dextrotabs, and you can sort out hypos without ending up above 10.