How much liquid is normal on the skin after a subcutaneous injection?

I have tried every injectable that has come out over the years and I don’t recall ever having any fluid other than maybe small drop of blood. I would guess you are right that it pushed back out some of the medication. I know this is off topic but about 5 months ago I was put on a CPAP machine for shallow breathing during sleep, waking up with headaches and fatigue. It’s annoying and difficult to get used to but the unexpected benefit will keep me using it. For whatever reason the compressed air from the CPAP has reduced the frequency of my migraines about 75%. And the ones I do get are not as severe and go away usually with one dose of Maxalt. I have had migraines for over 35 years and tried everything that’s out there. The last meds I used before stopping was Emgality which is the reason I replied. Just thought others would see this and maybe it could be something of benefit. Good luck with your treatment.