Face swell after MS IV

[Dead by 27]

Swim is experienced in this and took an average size dose, but the rush seemed more intense, especially the feeling of pulsing from the head down to the fingertips. Felt like swims face was puffing so swim looked in the mirror for a goof and it was swelling pretty good. after a few minutes it reduced to bags under the eyes.

Never happened before, no known allergies. possibly the brand? Swim usually has something different, but nothing consistent. they were 30 mg Morphine Sulfate from Glenmark Pharmaceuticals Inc. LV on one side 930 on the other. white oval. Took 4 at once but can handle it usually no prob.

Any ideas? Maybe something on the $ bill used to crush it? New allergy? Good batch? q tip?