Hydrofluoric (HF) acid, one of the strongest inorganic acids, is used mainly for industrial purposes (eg, glass etching, metal cleaning, electronics manufacturing). Hydrofluoric acid also may be found in home rust removers. Exposure usually is unintentional and often is due to inadequate use of protective measures.
It can be difficult to pinpoint the exact cause of a burning smell in nose. Thatâs because the potential causes are many. One possible explanation for this symptom is sinus congestion. A lot of people suffer from this, so you shouldnât rule it out. People with sinus problems sometimes smell things that arenât there, too.
This inflammation can be caused by a bacterial or viral infection. Sometimes, however it can be caused by an allergic reaction. Adenoiditis blocks the nasal cavity, leading to an accumulation of the bacteria, a purulent discharge from the nose and subsequently a bad smell coming from the nose.