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There could be an infected callus or even a ganglion
of the wrist region. Kindly get examined by an Orthopaedician to find the right diagnosis and treatment as you may need incision and drainage
or excision with/without antibiotic coverage. Avoid using bath salts as the way you do as there are lot of severe side effects including severe hypertension
, bleeds in the brain, heart failure
and even sudden death.