Take two tolas of the inner bark, let it be ground with a proportionate amount of water and then filter it in five tolas of water. This is to be drunk morning and evening. Apply poultice of fine ground neem leaves on the morbid swellings at the armpits. By this measure the swellings will get spread out and the fever will be quietened.
During an epidemic of plague, such of the families who have started drinking neem leaf water are found to remain unaffected. Neem is quite useful in plague. Take the five organs of neem (leaf, bark, flower, fruit and seed), pound them well, filter it in water and drink this water in a dosage of two tolas at frequent intervals and apply leaf poultice for the swellings. The severity of the disease becomes markedly less. It is the organic sulphur of neem that is believed to be active here.