To provide first aid for bites and stings, it's important to stay calm and identify the type of bite or sting. For insect stings, remove the stinger and clean the area, then apply a cold compress and take pain relievers. For bites from animals like snakes or spiders, seek medical attention immediately and keep the affected limb immobilized. If a severe allergic reaction occurs, call 911 or seek emergency medical attention. To prevent bites and stings, wear protective clothing and use insect repellent.