[45M] Experiencing severe itching and swelling in hands and arms

What might be happening

Based on the information you've provided, possible diagnoses include:

• Allergic Contact Dermatitis: This is a type of skin inflammation caused by direct contact with an allergen. This reaction can cause severe itching, redness, and swelling. It's possible that you came into contact with something you're allergic to, such as the old wood you mentioned.

  • Treatment usually involves avoiding the allergen and applying topical creams to relieve the symptoms.

• Cellulitis: This is a common bacterial skin infection that can cause redness, swelling, and warmth in the affected area. It typically occurs when bacteria enter a break in the skin and spread. The fact that you were recently at a hospital could potentially increase the risk of exposure to bacteria.

  • Treatment typically involves antibiotics to kill the bacteria.

• Hives (Urticaria): These are red, itchy welts that can appear suddenly and spread rapidly. They are usually an allergic reaction to food or medicine, but can also be triggered by other substances or physical factors.

  • Treatment usually involves antihistamines to control the itching.

What you can do

1. Seek immediate medical attention. The spreading nature of your symptoms is concerning and should be evaluated by a healthcare professional as soon as possible.
2. In the meantime, continue to avoid scratching the affected areas as this can worsen the condition and potentially lead to infection.
3. Over-the-counter antihistamines may help to reduce the itching, but they are not a substitute for medical evaluation and treatment.

What you should look out for

Seek immediate medical attention if you experience any of the following:

• Rapid spread of the redness and swelling
• Fever, chills, or feeling generally unwell
• Increasing pain in the affected areas
• Any difficulty breathing or swallowing

Please remember, while I strive to provide accurate information, I'm an AI and this advice should not replace a consultation with a healthcare professional.