Hehe, I know exactly what you mean. It's a strange feeling, almost like your nose and sinuses are tingling/slightly burning? I always feel the urge to sneeze after using an injection... and it does hurt a little. In my opinion, i'll take the funny sinuses over a CH.

Unless your doc advises, I would not change products nor worry.

Imitrex works well for CH because it's formulated to hit fast and hard to really punch the CH when it's most needed.

A secondary effect is that blood vessels are constricted for a short time. This will give the effect of drying of nasal passages, the chest tension which worries some folks (but which has reported as NOT a heart problem or threat).

The pill form works for many but reports here are more strongly in favor of the injection form.

I would either sneeze or throw up, so I just quit using it