Colins advice is excellent
To put things in perspective: After the hairdryer she was all hyped up with adrenaline and fear, and it takes dogs a long time to recover from that type of thing, longer than we think, so everything else that followed was while she was still upset, and we really don't know what goes through their minds at those kinds of times.
I do think the fact that she is teething may play a part in making her grumpy if her mouth is sore.
I also think that for some dogs these incidents can be like a toddler that hits the parent in anger or fear. You don't react with anger, but let it be known that this is not acceptable behaviour. You just sort of mentally file it away that this is a stress reaction, it does not mean that a child or dog is going to grow up to be a psychopath, but will gently have to be taught how to handle stress and fear. It's not unheard of, nor is it necessarily a bad sign, for a puppy and owner to "butt heads" a few times as part of a learning curve for both. So don't panic!
Maisy is still a "child", she does not yet know all the rules for living, and has not yet learned how to cope with her environment. If you got her at 8 weeks that means she's only been with you for 10 weeks, thats only a little more than 2 months, there is a lot more for her to learn, and it can't all be crammed into that small amoutn of time.
A couple of tricks: You can wrap her in a towel and pin it across her chest and under her belly and this can be kept on till she's dry enough not to be chilled.
If she has another "sofa incident" and won't get down for treats or being left alone, you can grab the back of the sofa cushion and dump her off without touching her.
As far as your daughter is concerned, she just needs to know to leave a growling dog alone.
I hope this helps