Hello,
Itchiness all over the body commonly occurs due to allergy,
contact dermatitis, scabies,
psoriasis,
insect bites or hives / shingles, etc. You are suggested to take antihistamines to reduce the symptoms. Take care of your hygiene, wash all your clothes, bed sheets and bedding in hot water frequently. After a bath, apply
hydrocortisone ointment / cream on the area affected to control itching.
If sexually active avoid sex for a couple of days. You can apply Ascabiol lotion on the area affected leave it for 30 minutes and take a shower. You should get relief. You can repeat the process again after 15 days. However, you should get clinically examined by a
dermatologist to rule out skin diseases like eczema, psoriasis, shingles, etc. You will have to get STD tests and few other tests for a detailed diagnosis.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Nupur K., General & Family Physician