Qist - remedy of the Sunnah
Qist and qist oil are anti-viral. Ideally recite over the oil first and apply externally. Burn incense on charcoal.
The Messenger (SAW) said, "Use this Oud Al-Hindi (Indian incense) because it contains 7 types of cures, it is sniffed by the one having throat trouble, and is put inside the mouth of the one suffering from pleurisy'. Saheeh Al-Bukhari 5692.