The views expressed by me are for educational purposes only and do not establish a doctor patient relationship.
I am Mysticdoc, experienced Internal Medicine Specialist.
I am here to help you with your concerns.
This is likely an insect bite --can be bee, any other insect or even jelly fish.
The hotness and swelling are due to the allergic reaction.
Application of ice liberally will help.
Also topical hydrocortisone cream twice daily can be applied to reduce the inflammation.
Ibuprofen will help with the pain and swelling.
Advil 2-3 tablets can be taken together every 8 hours with food.
Benadryl tablets 25 mg 1-2 tablets every 8 hours also is good to control the allergic reaction.
These medications together should help to relieve the symptoms within 2-3 days.