you can submit your application and request an expedited review based on humanitarian reason, gather all supporting documents like doctor affidavit or her evacuation paperwork plus write a cover letter explaining your situation and submit to uscis for review. I don’t know if you will be allowed to use your home country passport for this trip since you applied for asylum so I suggest you seek advice from a lawyer before traveling. All my regards go to your mum and I hope she get better and Good luck

thank you si much