Nitrates widen blood vessels, and Viagra increases that effect. Mixing the two can cause your blood pressure to drop drastically. A sudden drop in blood pressure can make you pass out, and you may die if your blood pressure stays too low for too long.
3 doctors agreed: 1  Allergic dhiners: She has what's known as allergic shiners. It it caused by blood shimmering through her fine skin. 2  Cold compress: Purple or blue marks under eyes may be due to blood vessels under eyes. Cold ice packs might help marks decrease by contracting the vessels. What causes : rapid appearance of brown spots on nose, under eyes, forehead. Feet cold and turn purple, sore breasts, acid reflux, popping joints? Dr. Jan Lei Iwata Dr. Iwata
If your dark under-eye circles aren't quite as adorable as a panda's, you don't have to grin and bear it. Try these (en)lightening strategies to minimize them. Your plan of attack depends on the color of your circles. Look straight into a mirror in natural light, then lower your chin slightly to expose the shadows under your eyes. This way, you'll see clearly whether your circles are more blue or more brown. Blue circles. The cause: Blue circles result from oxygenated blood pooled beneath the under-eye skin. Skin here is very thin and almost transparent, so blood shows through. This is more noticeable in the morning: When we've been horizontal for a while, fluids accumulate and the veins expand to hold more blood.