I often have patients with dementia that have refused to take medications. I have tried all kinds of tricks to get them to take their meds; talking with them, hiding
meds in ice cream, telling them it's candy, etc. These might work for a little while, but it usually doesn't last. I don't know if you have ever tried chocolate pudding with crushed medications in it, but it is not tasty! Instead, I would suggest:
1) Call her health care provider and ask if you can cut out some of her medications to encourage her to take the ones she really needs. Perhaps they can even change the medication times to the morning or lunchtime, so that you can avoid giving her medication in the evening.
2) You can also try asking for liquid form of the medication instead of a pill. Seroquel doesn't come in a liquid form, but other antipsychotics do. One comes in a quick dissolving tablet (zydis) that will dissolve on contact with the mouth. These will dissolve easily in juice or some other drink, which she might take without problems.
I cannot believe that a nurse suggested holding her arms down using a blanket to get your mother to take medication! NO MEDICATION IS THAT IMPORTANT! If she refuses to take her medications, so be it. I would never recommend restraining someone to get them to take medication. This is not worth the fight, as there is a chance that you or your mother could be seriously injured. Also, she already has issues with swallowing, so this may cause her to choke. Instead, I would try my suggestions above. I hope that this helps you. Good luck!