Hai,
i appreciate your belief in ayurveda.
Adathoda vasica,thuthuvelai ,thaleesathi choornam are used for respiratory related problems. But it is a general indication. individual differs with choice of medication depends on the disease/condition needs.
As classical ayurvedic medicine didn't insist single or combined drug medication for a particular disease.depends upon the tridosha (vatha,pitta,kapha)medication will differ.
as you are taking powder(choornam) type of medication will cause dryness.
breathing difficulty indicates abnormality in vata(movement of air). so you need medication like vayu gulika ,dasamolaaristam and external application of karpurathi tailam to relive the congestion.
self medication cannot work every time.
proper evaluation by the physician is must.
once you cleared with your problem/breathing difficult you can be out of fear and
anxiety.
kindly visit a classical Ayurveda physician to evolve your status and for appropriate medication.
thank you
hope i answered your query