Thanks for writing your query.
you have done i.e. application of ice and pain relieving patch was good.
But your mother now needs a clinical examination and investigations like an X-Ray.
Fracture of femur is commonly seen in old people after a fall.
You should take her to the hospital and get her clinically examined by an Orthopedic surgeon.
There might be a soft tissue injury
which will respond to pain killer like Ibuprofen
one tablet twice a day after meals along with an antacid like Omeprazole
20 mg. and a muscle relaxant
She should have complete bed rest for speedy recovery.
I hope this is helpful to you.