Red spots on body and tiny (whitish) raised bumps on hand. are these symptoms of anything serious?

Needs to be checked: It is very hard to say what it may be as we do not have enough information and without looking at rash I recommend that you consult your Primary Care Doctor or see a Dermatolgist to find what is the rash due to

VisualDX : Hi, it’s hard to say without a picture but there is a great app that may be able to help you get a diagnosis without being seen in person by a dermatologist. The app is called VisualDX and is one of the best, if not the best out there. Many clinicians, including myself, use it. Just snap a photo and it gives you a list of possible diagnoses. Good luck!