With dermal exposure, hydrofluoric acid is known to cause localized burns, but also systemic
toxicity through the effects of the fluoride ion.

Burns from lower-concentration hydrofluoric acid will frequently present many hours after the
actual exposure, so a high index of suspicion needs to be maintained.

The mainstay of treatment for significant hydrofluoric acid exposures is calcium gluconate,
given topically, intradermally, and systemically.
Sutures should be placed through the skin and perichondrium (the connective tissue layer
adherent to the cartilage), but should avoid the cartilage to decrease the risk for chondritis.
For through and through lacerations, it may be necessary to place a few deep sutures in the
cartilage to achieve anatomic alignment, but in general, this should be minimized.

An auricular field block provides local anesthesia for the entire auricle excluding the concha,
meatus, and external auditory canal.

There are no data to support the use of prophylactic antibiotics following auricle laceration
repair, although if used, most experts recommend anti-staphylococcal coverage.

Auricular Hematoma can be drained within 7 days, prophylactic antibiotics are suggested.
HFA Burn
Auricle Laceration