Nasal strip 

a type of adhesive bandage with embedded plastic ribs or splints that is applied across the bridge of the nose and sides of the nostrils, to assist in keeping the airway open.

They worked out a licensing agreement with CNS, the company that manufactured the human "Breathe Right" brand of nasal strips in 1997 (now owned by Foundation Consumer Brands) where the company manufactured the equine form of the Nasal strip.

Nasal strip by SPrice1980 June 27, 2023

Nasal strip 

A nasal strip, external nasal dilator strip or nasal dilator strip is a type of adhesive bandage with embedded plastic ribs or splints that is applied across the bridge of the nose and sides of the nostrils, to assist in keeping the airway open

Nasal strip adhere to the skin, holding open the anterior nasal aperture and prevent it from collapsing

Nasal strip by Wendysfg June 27, 2023

Nasal strip 

a type of adhesive bandage with embedded plastic ribs or splints that is applied across the bridge of the nose and sides of the nostrils, to assist in keeping the airway open. They are believed to make breathing easier and for that reason are used during athletic exertion and as an aid to reduce congestion or to prevent snorin

Effects of the Nasal strip and dilator on nasal breathing, a study with healthy subjects

Nasal strip by SPrice1980 June 27, 2023