[24F] With painful and itchy armpit bump

What might be happening

Based on the information you have provided, here are some possible explanations for the bump under your arm:

• Infected Hair Follicle (Folliculitis): This is a common condition where hair follicles become inflamed, often due to bacterial or fungal infections. It can cause a red, painful bump that may be itchy.

  • Treatment: Warm compresses can help reduce pain and swelling. Over-the-counter antibiotic ointments may also be helpful. If it doesn't improve, a doctor may prescribe oral antibiotics.

• Lymphadenopathy: Swollen lymph nodes can occur due to infections, inflammation, or other causes. They can be tender and painful.

  • Treatment: This often resolves on its own if it's due to a minor infection. If it persists or you develop other symptoms, a doctor may need to evaluate it further.

• Cyst: A small, hard lump under the skin could be a cyst, which is a closed sac filled with fluid or other material.

  • Treatment: Cysts often do not require treatment unless they become painful or infected. A doctor can drain or remove it if necessary.

• Contact Dermatitis: This is a skin reaction to an irritant or allergen, which can cause redness, itching, and bumps.

  • Treatment: Avoiding the irritant and using over-the-counter hydrocortisone cream can help.

What you can do

Here are some steps you can take to manage your symptoms:

1. Warm Compress: Apply a warm compress to the area for 10-15 minutes several times a day to help reduce pain and swelling.
2. Keep the Area Clean: Gently wash the area with mild soap and water to prevent infection.
3. Avoid Irritants: Avoid using any new deodorants, lotions, or other products that might irritate the skin.
4. Over-the-Counter Treatments: Consider using over-the-counter antibiotic ointments or hydrocortisone cream to help with pain and itching.
5. Monitor the Lump: Keep an eye on the lump for any changes in size, color, or pain level.

What you should look out for

Seek medical attention if you notice any of the following:

• The lump grows larger or becomes more painful.
• You develop a fever or feel unwell.
• The lump becomes red, warm, or starts to drain pus.
• You notice other lumps appearing elsewhere on your body.

Remember, while these suggestions can help manage your symptoms, it's important to consult a healthcare professional for a formal diagnosis and treatment plan. You can use MDandMe to journal your symptoms, track progress, get insights, and share longitudinal medical notes with your provider.