Ditto on what Kate said.

Some people are allergic to iodine, which is what they often use in those antiseptics. Have you washed the area?

If you see any evidence of what looks like a "line" going any where from either site/arm, you need to go in immediately. And I mean that very second. I've had bacteremia/blood poisoning from an IV. Not fun and very dangerous, especially for someone with MG. It can lead to sepsis quite quickly and go directly to your heart.

If you start to notice any pain running up either arm, ditto.
If you have pain in your shoulder or chest, go in.
If you feel chilled at all, same thing.
If you have any kind of fever, again, go in.

The signs of bacteremia can be very subtle and you have to be vigilant about looking for them, especially because you are immune suppressed.

And in case it's an allergic reaction, if it starts to itch a lot, go in. An allergic reaction to something so relatively minor like an antiseptic is serious. And if you get hives, they may show up on other places on your body! If you notice an itch any where on your body, look at it. And then go in.

Geez, you can't buy a break lately. I hope you get better. Please be careful tonight. Call your doctor if you have to.

Annie