PMC8191560_01
Parotid fistula and Frey's syndrome
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F1
Frey's syndrome [Figure 1]. Forty units of BTA was injected subcutaneously in the parotid region.
The parotid region is divided into four quadrants. The injection points are at 1 cm from each other
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F2
The parotid fistula got resolved within 4 days with complete closure of the fistulous opening and gustatory sweating (Frey's syndrome) ceased after 6 days [Figure 2].