What medicine can cure this serious itching that occurs allover the body after bath?

There are many possible causes for serious itching after a bath, and the appropriate medicine to cure it will depend on the underlying cause. Some common causes and treatments include:

1. Dry skin: If the itching is due to dry skin, a good quality moisturizer applied to the skin immediately after bathing can help lock in moisture and relieve the itch.

2. Eczema (atopic dermatitis): Eczema is a common skin condition characterized by dry, itchy, and inflamed skin. Treatment options for eczema may include topical corticosteroids, calcineurin inhibitors, or moisturizers.

3. Scabies: Scabies is a contagious skin condition caused by a tiny mite that burrows under the skin. Treatment for scabies typically involves applying a medicated cream or lotion to the entire body.

4. Hives (urticaria): Hives are itchy, red, and raised bumps on the skin that can occur due to an allergic reaction or other triggers. Treatment for hives may include antihistamines to reduce itching and swelling.

5. Drug reaction: Some medications can cause itching as a side effect. If you experience itching after starting a new medication, talk to your doctor to determine if it could be the cause.

6. Liver disease: Severe itching can sometimes be a sign of underlying liver disease. If you have chronic itching and other symptoms such as yellow skin, dark urine, or fatigue, it's important to see a doctor for further evaluation.

If the itching is severe or persistent, it's always best to consult with a healthcare professional for an accurate diagnosis and appropriate treatment.