There are medicinal application of the custard apple tree. Leaves "which have a fetid odour when bruised, are applied for extraction of guinea -worm, and when reduced to powder, are used to kill lice on cattle. Bruised leaves are used for destroying worms bred in sores.
Sugar Apple is an excellent tub or container plant for indoors and patio, with an added bonus of being rewarded with edible fruits. High in calories with nutritional value, its fruit is usually eaten fresh out of hand (just savour the fabulous sweet flesh by the mouthful and spit out the inedible seeds).
The thick juicy and creamy pulp, after being separated from the seeds can be used to make delicious milkshakes, ice-creams and sherbet.Besides, the Sugar Apple tree not only serves as a host for lac-excreting insects and caterpillars of some butterfly species, but even its seeds, leaves, bark and roots have many uses. Its seeds, though acrid and toxic, can be grounded into a paste and applied to hair to get rid of lice.
However, it must be kept away from the eyes as it is highly irritant and can cause blindness. And, its leaves have medicinal uses - in India, the crushed leaves are sniffed to overcome hysteria and fainting spells, and leaf decoction is used for treatment of ulcer, wound, dysentery and other ailments