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.
Signs and symptoms of a broken nose: 1  Pain or tenderness, especially when touching your nose. 2  Swelling of your nose and surrounding areas. 3  Bleeding from your nose.  Bruising around your nose or 1  eyes. Crooked or misshapen nose.  Difficulty breathing through your 1  nose. Discharge of mucus from your  nose.