Hello.
You seem to be suffering from phlebitis.
Phlebitis is a condition in which a vein becomes inflamed. The inflammation may cause pain and swelling. When the inflammation is caused by a blood clot or
thrombus, it is called
thrombophlebitis. Thrombophlebitis usually occurs in leg veins, but it may also affect the veins in the arms.
There are two sets of veins in the arms and legs, 1) the superficial veins that run just under the skin, and 2) the deep veins.
In your case it seems to be the involvement of only superficial vein of the arm.
Superficial phlebitis affects veins on the skin surface. The condition is rarely serious and usually resolves with local treatment of the inflammation.
If the doctor makes the diagnosis of superficial phlebitis, the treatment includes warm compresses and anti-inflammatory medications such as
ibuprofen.
If there is a
skin infection associated with the superficial phlebitis, antibiotics may be prescribed.
Thanks