lots of cold water. or cold compresses. to limit the burn. if the burn is extensive perhaps involving much of your hand and fingers you should see a medical provider. unfortunately i have no way of determining the extent of your burn over the internet. don't rupture or pop any of those blisters and use an antibacterial burn ointment or cream.
what can you do for 2 degree burn from hot liquid? soup. i was making myself soup slipped and spilled hot broth on myself.