[22F] Concerned about a painful red bump in the armpit

What might be happening

Based on the information you've provided, here are a few possibilities:

• Infection: The red, painful bump could be due to a localized infection, such as a boil or abscess. These are often caused by bacteria entering the skin through a hair follicle or small break in the skin.

  • Treatment usually involves warm compresses to help draw out the infection and antibiotics if necessary. In some cases, a healthcare provider may need to drain the abscess.

• Inflamed Lymph Node: Lymph nodes, which are part of your immune system, can become inflamed when they're fighting off an infection or disease. The armpits have a high concentration of these nodes.

  • Treatment depends on the cause of the inflammation. If it's due to an infection, antibiotics may be prescribed.

• Hidradenitis Suppurativa: This is a chronic skin condition that causes small, painful lumps to form under the skin. The lumps can break open, or tunnels can form under the skin. The disease is most common in areas where your skin rubs together, such as your armpits or groin.

  • Treatment usually involves medications to control inflammation and prevent new breakouts.

What you can do

• Apply a warm compress to the area for 15 minutes at a time to help reduce pain and inflammation.
• Avoid squeezing or popping the bump, as this can lead to further infection.
• Keep the area clean and dry.
• Continue taking your vitamin D as prescribed.

What you should look out for

• If the bump continues to grow in size
• If you develop a fever or other signs of infection, such as chills or a general feeling of being unwell
• If the bump doesn't improve after a week or so
• If you notice similar bumps in other areas of your body

Please remember that while I strive to provide accurate information, I'm not a doctor and this advice should not replace a consultation with a healthcare professional. If your symptoms persist or worsen, please seek medical attention.