Thank you for your query,
Because of the pulling and twisting forces ligamental sprain
occurs and this may be the cause of pain around the arm and neck.
If pain is mild to moderate you can give Tylenol
or pain is severe you can give ibuprofen
in prescribed dosage as per your child weight and age.
Consult your Pediatrician
to rule out any dislocation of elbow or shoulder joints as these are commonly associated with this type of forces.
Hope i have answered your query.