Thanks for providing more information.
Most scorpion stings don't need medical treatment and the first aid steps to follow may include
Wash the area with soap and water.
Apply ice to the area. Make an ice pack and hold it for 10 minutes.
Take OTC Motrin and Cetirizine.
But if you develop any severe symptoms like excessive pain, swelling at the site, blurry vision, muscle twitching, roving eye movements, or other non-typical symptoms, be sure to go to the ER.
Another thing is that there is a risk of anaphylactic reaction and for its prevention and shot of steroid and anti histamine will be required.
There is a specific anti venom available, which can completely relieve symptoms within 90 minutes or less.
Also a tetanus prophylaxis will be required.
Immobilization to avoid spread of venom will also help.
Decision to give antibiotic depend on the state of the wound.
I hope this helps.
If you have any further query then feel free to ask.
Positive feedback and bonus are highly appreciated.