"New York has been hit HARD. The people need help, the nurses need help, the doctors need help, everyone needs help," added Hilton, who also called her overall experience "rewarding."
After hearing of Hilton's plight, Swift made sure that she had something extra special waiting for her at home.
"I wanted to send you some presents and to let you know I am so grateful for you," the 10-time Grammy winner said in the letter. "I can't thank you enough for risking your life to help people and for spreading the message loudly that people need to hear about taking this seriously."
She went on, "Also, I saw the photo of you from my show! Thank you for coming! I would love to give you a hug next time and thank you in person. With love and admiration, Taylor."
Hilton gave a shout-out to her idol's thoughtful gesture on Twitter Sunday, writing, "I need to PUBLICLY THANK TAYLOR SWIFT @taylorswift & @taylornation13 @treepaine for sending me a box full of Merch & a PERSONALIZED LETTER from Taylor herself for my 30th birthday/for going to NYC to help as a nurse. This was quite literally the BEST DAY OF MY LIFE."