If onset is really that bothersome then sublingual perhaps but the amount of powder will be honestly gash.
There is plugging but quite a process too.
Oral really likely is the best way to go imo, but I’d advocate the other routes long before intranasal.
Longer Experience, less feinding, and gentler crash. Only way to use sensibly for most people.
I haven’t snorted anything for a very long time (5plus years) and never will again, I have had permanent sinus issues and my doctor confirmed a deviated septum on my last visit.
Trust me feeling like you can’t breathe through your nose properly 24-7 is agony, and I also suspect has made me more ill.
It has taken a long time for me to be able to sleep without mouth breathing no longer taping my mouth or using breathing strips, and I can no longer vape or smoke anything either.
Idk I’m fear mongering now lol..