Water bubbles in the legs, also known as leg edema, can be caused by heart problems that prevent the proper flow of blood back to the heart, diabetes, or weakening veins due to age. To help alleviate leg edema, one should sleep with their legs elevated above their heart to improve circulation, apply nitroglycerin patches or pills if experiencing irregular heartbeats, and take diuretic pills to remove excess fluid from the body as prescribed by a doctor. It is important to treat water bubbles early by gently popping small bubbles and covering the wound to prevent infection from larger bubbles that could explode, causing a serious staff infection.

1. Water bubbles in the legs
Water bubbles in the leg are caused by a bad heart, which it
can't pull up the blood up,diabetes, or the veins become weak
with age and can't move fluids up the body, if you have that
kind of problem, sleep with your legs up higher that your heart
to help blood and fluid circulation, talk to your doctor to get
nitroglicerin patches or pills for your heart (if you have
irregular heart beating) and pills to get rid of excess water in
your body, Torsemide, Spironolactane and if that fails,
torsemide which is a very strong diuretic (you may also will
need potasium pills, because if you pee too much, your
potassium levels will be very low)

2. Get rid of this water bubbles as soon as possible,
pinch them open when they are very small and let
them drain. Cover the wound to protect it and change
bandages often. If you allow them to grow to big, will
grow to around 30 inches in diameter, will explode
and will cause a staff infection on the open wound, or
other nasty infection that can be very bad.
Disclaimer: This paper is only educational only, every case if
different, talk to your doctor about it.