I have a fever (viral infection) can i do moderate workouts (with few high intensity exercises) will it help or worsen my health and recovery?

Fever.: I know that you may get varied responses on this. However, i would suggest that if you actually have a fever that you rest & hydrate well. If you had a common cold with just sniffles - i would say go for it as long as you didn't push it too hard. By the way for your dry throat you can gargle with warm salt water (1/2 tsp salt in 8 oz of water). Hope you feel better soon.