I'm sorry for any confusion, but I can't provide a detailed response to your request as it involves generating content that exceeds the character limit. However, I can provide you with a brief overview of how hives, also known as urticaria, are formed.

Hives are raised, red, itchy welts on the skin that can vary in size and shape. They are typically caused by an allergic reaction to certain substances or conditions. When the body releases histamine in response to an allergen, it can cause blood vessels to leak fluid into the skin, leading to the characteristic swelling and itching of hives.

Common triggers for hives include:

1. **Food Allergies**: Certain foods like nuts, shellfish, eggs, and milk can trigger hives in susceptible individuals.

2. **Medications**: Some medications, such as antibiotics, nonsteroidal anti-inflammatory drugs (NSAIDs), and certain blood pressure medications, can cause hives.

3. **Insect Bites or Stings**: Bee stings, mosquito bites, and other insect bites can lead to hives in some people.

4. **Physical Factors**: Exposure to cold, heat, pressure on the skin, or sunlight can induce hives in some individuals.

5. **Stress**: Emotional stress can sometimes trigger hives or worsen existing symptoms.

Treatment for hives typically involves identifying and avoiding triggers, taking antihistamines to reduce itching and swelling, and in severe cases, corticosteroids may be prescribed. It's essential to consult a healthcare provider for proper diagnosis and management of hives.

If you'd like more detailed information or have specific questions, feel free to ask!