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.
A broken nose will be painful, swollen and red. Other typical symptoms include: 1  bruising around the eyes (black eyes). 2  a nosebleed. 3  tenderness when you touch the nose. 4  a crunching or crackling sound when you touch the nose. 5  the nose looking deformed.