The homeopathic remedy Coccus Cacti is for spasmodic coughs, tickling in larynx, must swallow continually, brushing teeth causes person to cough. Modalities:: WORSE slightest exertion; brushing teeth; left side; after sleep; touch; pressure of clothing. BETTER walking. SOURCE: Boericke Materia Medica
You can find Coccus Cacti at Remedy Source.