Lepa Therapy: Ayurvedic Herbal Paste

Lepa therapy is the classical Ayurvedic practice of applying a paste of ground herbs to the skin and letting it act as it sits and slowly dries, one of the oldest and simplest of the external treatments the tradition describes. Where the oil therapies work by unction and warmth, Lepa works by direct contact: herbs are ground fresh, spread over the part, and allowed to give up their virtue to the surface and the tissue beneath. It is used on the face for the complexion, on the joints and limbs for local complaints, and on affected parts of the body wherever the tradition judges that a herbal paste will serve.

The word Lepa means simply a smearing or a coat, and the related terms Alepa and Pralepa name the same idea. It is among the Bahya Chikitsa, the external treatments, and it stands beside Abhyanga, Sweda and the rest as one of the ways Ayurveda brings the action of herbs to the body without their being swallowed.

The classical account

Sushruta, in the eighteenth chapter of the Sutrasthana, gives the fullest early account of Lepa, and he divides it into three kinds by thickness and by aim. The thinnest is Pralepa, a fine, cool, moist coat that is not allowed to dry, used where heat and irritation are to be settled. The middle kind is Pradeha, a thicker paste, warm or cool according to need, spread more heavily and used for a wider range of local complaints. The heaviest is the true Lepa proper, thick and drying, used where a strong local action is wanted.

He is careful about direction and thickness. A Lepa is usually applied against the lie of the body hair, so that the paste reaches the surface evenly and its virtue is drawn in through the roots of the hair and the pores, and each kind is spread to its own set thickness, measured in the texts in finger-breadths. He is equally careful about time, warning that a paste must be taken off before it has dried out completely, since a Lepa left too long loses its moisture and begins to draw dryness and heat from the skin rather than giving benefit.

This last point is one of the most quoted rules of Lepa, and the reasoning behind it is worth drawing out. A paste applied moist gives up its cooling, softening virtue to the skin as long as it stays moist. Once it dries hard, that flow reverses: the dried paste begins to pull moisture and warmth out of the surface, which is the opposite of what most Lepa are meant to do. So the tradition times the application to the paste and the purpose, keeping the cooling pastes moist and renewing them, and taking off the heavier, drying pastes at the point their work is done. A Lepa is never simply left on the skin to harden and flake away.

What a Lepa is made of

The heart of a Lepa is the ground herb, but the medium in which it is ground is chosen with as much care, because it directs the action. For cooling pastes the herbs may be ground with water, with milk, or with the juice of cooling plants; for Vata complaints of the joints, warming herbs are ground with oil, ghee or a warm decoction so the paste is unctuous; for Kapha and heaviness, drying and scraping herbs are ground with honey or a sour liquid. Sandalwood, rose, cooling earths and bitter herbs appear in the pastes for heat and the complexion; warming aromatics and the great Vata drugs appear in the pastes for the joints.

The consistency matters too. The paste is mixed neither so thin that it runs off nor so thick that it will not spread, and it is applied fresh, since the tradition holds that a paste ground and used at once carries the full virtue of the herb, which begins to fade if it is left to stand.

The uses, grouped by purpose

The later compendia arrange the uses of Lepa broadly by aim. There are the Varnya pastes, those for the complexion and the evenness and glow of the skin, of which the facial Mukhalepa is the best known: a gentle paste spread over the face and cheeks and taken off before it dries, chosen by the person’s constitution and the season. There are the cooling pastes for heat, irritation and local swelling, the Pralepa of Sushruta’s account, spread thin and kept moist. And there are the warming, unctuous pastes for the joints and limbs, used in local Vata and Kapha complaints where stiffness and dullness are felt, often alongside the oil and fomentation therapies.

Beyond these, Lepa appears throughout the classical surgical and medical texts as a local dressing for the skin and the parts beneath it, applied to a defined area and renewed as needed. In every case the principle is the same: the herb is brought to the surface, and its qualities, cooling or warming, drying or unctuous, are matched to the disturbance and to the dosha at work.

Mukhalepa, the facial paste

Of all the uses of Lepa, the facial paste is the best loved and the most elaborated in the later compendia. Mukhalepa is the Lepa of the face, and the Bhaishajya Ratnavali and other works give many formulas for it, arranged by constitution and by season. The tradition treats the face as delicate skin, and so the facial pastes are gentler, kept moist, and taken off before they dry. Cooling, brightening herbs, sandalwood, cooling earths, and nourishing substances appear in these formulas, chosen so that the paste settles heat and feeds the skin rather than drying it.

The classical accounts even grade the facial paste by how thickly it is applied and how long it is kept, much as Sushruta grades Lepa in general, and they warn against leaving a facial paste on too long or using a harsh, drying one on tender skin. This is the same rule of moisture, applied with extra care to the most delicate region. Because the face rewards a practised hand, therapeutic Mukhalepa is best guided by a practitioner, though the gentlest cooling pastes have long been a household habit.

The dravyaguna and how it is understood to work

Lepa is read through the ordinary Ayurvedic logic of qualities. The skin and the tissue beneath it can be too hot, too dry, too heavy or too stiff, according to which dosha is disturbed, and a Lepa is chosen to answer with the opposite quality. A cooling, moist paste settles the heat and irritation of Pitta; a warm, unctuous paste softens the dryness and stiffness of Vata; a drying, scraping paste lightens the heaviness of Kapha. Because the herbs sit in contact with the surface, sometimes for a fair while, the tradition holds that their virtue is drawn in through the pores and the roots of the hair, which is why the direction and the thickness of the application are treated with such care.

The keeping of moisture is part of the reasoning. A paste that is still moist continues to give its cooling, softening action; a paste allowed to dry out reverses this, drawing warmth and dryness from the skin. This is why Sushruta insists the coat be removed in good time, and why the cooling pastes in particular are kept moist and renewed.

Where Lepa sits among the external therapies

Lepa is one of a family of external treatments, the Bahya Chikitsa, and it is useful to see where it stands among them. The oil therapies, Abhyanga and the medicated oils, work by unction and warmth, carrying their virtue in a fatty base; the fomentations, Sweda, work by heat; and Lepa works by the direct contact of ground herbs with the surface. A practitioner chooses among these by what the skin and the part need: a warming oil for a dry, stiff region, a fomentation for deep stiffness, a cooling paste for heat and irritation. Often they are combined, an oiling followed by a paste, or a paste as part of a larger local plan.

What distinguishes Lepa is its directness and its adaptability. Because the herb sits on the surface in its own paste, its qualities reach the skin plainly, and because the medium can be changed, water, milk, oil, ghee, honey or a sour liquid, the same method can be made cooling or warming, drying or unctuous, to suit almost any local purpose. This versatility is why Lepa runs through the whole of the classical materia medica, from the care of the complexion to the dressing of an affected part.

Precautions

Lepa is gentle at its lightest but not without cautions. The face and other delicate areas take only gentle pastes, kept moist and taken off promptly, and a strong, drying Lepa is not put on thin or sensitive skin. The choice of herbs, medium and thickness must suit the person, the part and the season; a warming paste is wrong for an inflamed, heated area, and a cooling one wrong for a cold, stiff joint. A paste is never left to dry hard on the skin. Because these judgements are individual, and because facial and therapeutic Lepa in particular reward a practised eye, this therapy is best guided by a registered Ayurvedic practitioner, especially on the face and on affected or broken skin.

This article describes the classical Ayurvedic understanding of Lepa therapy for education and is not medical advice; consult a qualified doctor or a registered Ayurvedic practitioner before using any herbal paste on the skin, particularly on the face or on any affected area.