I am having itching all over my body

what are the causes of generalized itching

1. it could be allergic reaction as urticaria
2. it could be resulting from red blood cell break down
3. it could be an skin infection due to viral or bacterial cause

what is the treatment of itching

1. avoiding the cause of allergy
2. and hydrocortison njection
3. choloropheneramin injection
4. in emergent allergic reaction (anaphylaxis) you also need adrenaline injection into the thigh
5. in case of hemolysis and blood cell breakage , corticosteroid is of benefit
6. antiviral and antibiotic in case of infection

what are the associated symptoms

1. generalized red spots on the skin
2. low blood pressure and dizzenes
3. shortness of breath
4. vomiting
5. fever

how do we diagnose the cause

1. clinical exam
2. CBC
3. CRP , ESR
4. bleeding time