Thanks for your query in HealthCareMagic.
It is very unfortunate that you had injury due to electric shock
. Fortunately not much damage has been done. Pain and cramp shall persist for at least 24 to 48 hours. The anti-inflammatory that you are taking should be taken at least three to four times a day with meals. Also apply cold
compresses two three times a day on the left shoulder for the next 24 hours. And do not forget to take rest.
In case there is any burn injury
then you need to have dressing done at the site.
Wishing you a speedy recovery.