Thanks for writing to us.
From the description it seems you have hand eczema
. It might have started coincidentally when you developed food poisoning
, however it is not related to the same.
Now to treat the same continue using a good emollient
cream preferably urea and lactic acid based. Also use a potent steroid
cream like clobetasole or halobetasole or a lesser potent one like mometasone
to help the lesions heal. If the area develops fissures and oozes too then a steroid can be used in combination with antibiotic cream. This would help in faster resolution of lesion. Avoid using harsh soaps, detergents or chopping vegetables ie use a glove while doing house hold chores.
Hope that helped.