Thanks for your query.
Don't worry .The bruise
is because some blood extravasated when niddle was inserted to punture the vein.May be the vein was double punctured or may be the needle got displaced causing this.
It will resolve gradually over time.
But still if you feel pain and there are signs of thrombophlebitis
then you can apply Heparin
gel locally.It will relieve the symptoms.
Yes going to a doctor and getting his advice is always a better option.
Hope this helps.
Update here how you stay.
Disclaimer: The Expert’s advice is provided for general informational purposes only and SHOULD NOT be relied upon as a substitute for sound professional medical advice
, as a complete assessment of an individual has not taken place.Please consult your nearest physician before acting on it. The advice is not valid for medico-legal purposes also