Malandrinum is a Homeopathic remedy prepared from the material from lesions of horses suffering from a disease known as Horse Grease. An excellent remedy for cure and prevention of smallpox. Also known for curing the ill effects of smallpox vaccination.
This remedy is also used curatively for:

Any ailment which comes up due to vaccination

Headache with dizziness

Profuse greenish purulent discharge from ears mixed with blood.

Tongue coated yellow with a red line in centre especially in typhoid.

Nausea and Vomiting

Skin

Preventive for measles
Good for eczema especially which comes on after vaccination
Blister, boils and pustule formation
Scab on upper lip, with stinging pain when torn off.
Aching in forehead.
Dry, scaly; itching; rhagades of hands and feet in cold weather and from washing.
Toes feel scalded and itch terribly. Bone-like protuberances.

Dose – As prescribed by physician. Can be taken along with other allopathic medicines.

Side effects- None

Precautions

Maintain half an hour gap between food/drink/any other medicines and homeopathic medicine.
Avoid any strong smell in the mouth while taking medicine e.g. camphor, garlic, onion, coffee, hing.