I have swelling in my r hand, arm, leg, and face, l side is normal. what is going on?

Any other symptoms?: Swelling all by itself makes it a lot more challenging to consider a diagnosis. Are you also having weakness, slurred speech, numbness? If so, CNS pathology should be considered. If it's only swelling then some problem with the lymphatic system should be considered. CHF would involve both lower extremities, DVT only involve one limb usually so it makes it harder to consider these.

R sided swelling.: It is most unusual to have swelling on essentially the entire one side of the body. You should see your medical doctor for a full evaluation. Above the waist swelling is usually due to a different cause than below the waist and to have two separate reasons for the swelling is rare. You may need to consider an allergic reaction. See your PMD.