If your finger is red and sore you have a streak up arm what should do?

Seek immediate medical attention. This could be a sign of a serious infection or other medical condition that requires prompt treatment.

In the meantime, here are some steps you can take to help reduce the pain and swelling:

1. Elevate your arm. This will help to reduce swelling and pain.

2. Apply a cold compress to the affected area. This will help to reduce pain and inflammation.

3. Take an over-the-counter pain reliever. This can help to relieve pain and inflammation.

4. Keep the affected area clean. This will help to prevent infection.