If you develop blisters after being bitten by an insect, don't burst them because they may become infected. Blisters don't usually cause pain unless they rupture (burst) and expose the new skin underneath. If possible, use an adhesive bandage (plaster) to protect the blistered area.

Should you drain an insect bite blister?

Mosquito blisters treatment

When the blister first forms, gently clean it with soap and water, then cover it with a bandage and petroleum jelly, like Vaseline. Don't break the blister. If the blister is itchy, you can apply lotion before covering it.

Is it good to squeeze a bug bite?

The quicker you remove the sting the better; so use anything suitable to scrape out the sting quickly. Do not try to grab the sting to pluck it out, as this may squeeze more venom into the skin. Scraping it out is better.