Yes
As far as I know I've never seen it cause a rash, but it causes you to bruise fairly easy I have an iron deficiency and I can brush against something and it cause me to bruise. It could be possible what your seeing isn't a rash but a bruise. Or your rash is caused by something else.
No, unless the cause of the hickey (probably someone sucking on your neck) also occurred at the area in which you have the leg bruise. The bruise on your leg could be caused by a number of things, a lot of people don't even realize where they got a bruise, or how they got it.
INFECTION, IVY, OAK, BRUISE, SWOLLEN, CAULLASES
Yes, it is possible (although fairly unlikely). The B12 compound won't cause the swelling, but one or more of the inert coumpounds in the formulation could cause the facial swelling.
If you are having unexplained bruising, it could be from banging into things without realizing it, some people bruise more easily than others. However, it can also be a sign of other conditions such as Hemophilia or even cancer. You should get seen by your doctor to get it checked out.
It is most likely the last stage of a bruise before it is healed.
check with your doctor. doesnt sound common
It is probably because you have hit your bruise and formed a lump there.
You could say Brooz
got to the doctor and ask why that's happening because hair could be growing inside your eyes to and could cause you to be blind
A sudden or unexplained change in behavior could indicate a variety of issues such as stress, mental health concerns, or a medical condition. It's important to address these changes by providing support and understanding, and seeking professional help if necessary to determine the underlying cause.