I hope Peggy feels better soon.
I found it helped me when i reminded myself if my hamster didn't like it that it would only last a few seconds and it's for the greater good of your hamsters health, they just don't know it or understand.
A few tips that can make it less stressful on you both is have a treat ready to give after the medicine.
you can put the medicine in the syringe, than add same amount of water and then add a drop of honey on the end. This way it dilutes and disguises the taste of the antibiotics. I wouldn't do that long term because of the honey, but for 7 days it will be fine.
If you do have problems with the syringe, you can also add it to babyfood (ensure hamster safe, no garlic, onion, lemon etc added)
or add to oats. or oats and babyfood
or add to something like hunters dog food.
Personally I found baby food worked best for me.
I did a video on it.
https://www.youtube.com/watch?v=6FGKt2d5KVE&t=9s