Hives after Flu Vaccine & Heart Symptoms

[moth2teen]

My 14 year old daughter had a flu shot in October 2012.  Within a few days she started to  breakout in hives. This went on for several days and her lips swelled so she was prescribed a steroid and took Claratin. In June 2013 she started having episodes where she described her eyes as going black and would feel dizzy. They only last a few to 10 seconds each time. She was having these maybe 1-2 times a week but by December she's having them 3-5 times a day. She also has shortness of breath at times.
She recently saw a nuerologist and was referred to a cardiologist for slow heart rate. We see him in a couple of days but I am wondering if a flu vaccine could have affected her heart?

[Paderla Anitha, DNB]

Hi, its unlikely that flu vaccine can affect the heart. Any untoward effects of the vaccine are unlikely to last that long. Its more likely that she is having her symptoms of dizziness due to low blood pressure. So, your doctor has advised for her to take fluids and salt. So, follow up on this and see if it helps improve her symptoms and monitor her blood pressure at regular intervals. Regards.

[moth2teen]

My daughter saw the cardiologist yesterday. He didn't do any new tests, but asked a lot of questions about how it feels when she's out of breath and when she has these episodes with her eyes going black and dizziness.
He feels that she needs to drink more water and eat more salt. Once her body is more regulated, these other symptoms should stop. If she follows the protocol but isn't getting any better, we need to go back in a month. Of course, If it gets worse, we need to go in sooner.
Has anyone had to deal with dehydration in their teenage daughter or son?