Depends.
Is there any bite marks, bruises, cuts, or anything?
Also have you used different skin care items? such as lotion, face wash, shaving cream, etc?
Its could also be an allergic reaction-
The dizziness could be from something you ate, or you got bit by something BAD.
Ask you doc what you can do about it and if there's any other things that can help it.
Good luck, i hope you feel better