Hi, Welcome to HealthcareMagic Forum.
Does she have any itching? She has a Lower Respiratory Tract
Infection. Kindly get her examined by a Physician as she will require antibiotics to cure her infection. Am sorry, as no medicine can be Prescribe without Proper Physical examination owing to her heart condition. She also has allergy
and it also has to be confirmed by the Doctor and Prescribe Medications.
I Wish her Good Health, Take Care.