Hello
Herpes virus infection known to give pain becos it affects nerves so yr mother is in pain
For homeopathic treatment we need symptoms like when pain is more like night or morning and in itching how she feels better with cold or warm application etc.
Next Steps
take furthur consultation and will send medicine or tell name so you can buy it.
Health Tips
herpes if left untreated it reappears every year so homeopathy will cure it completely.