His symptoms are suggestive of Acute Urticaria
. This is usually caused by either due to allergy
to the sea plant or coral or toxins from the coral .
The treatment given to him is the perfect treatment however if it worsens he might need a short corticosteroid medication course .
Please note that if he has any lip swelling
or difficulty in breathing you should see doctor right away.
Hope this information is useful, please feel free to ask if you have any queries.
Please feel free to ask if you have any queries.