A quest for healing is often motivated by the compassion of those personally affected. So love does seek cures for all types of maladies.
Buddhist Prayer of Peace
May all beings everywhere plagued with sufferings of body and mind quickly be freed from their illnesses. May those frightened cease to be afraid, and may those bound be free. May the powerless find power, and may people think of befriending one another. May those who find themselves in trackless, fearful wilderness – the children, the age, the unprotected – be guarded by beneficial celestials, and may they swiftly attain Buddhahood.
Depends on what you say your needs are. Maybe you don’t need to cure malaria. BTW, I was under the impression that nothing cures malaria. And, that health, such as generally comes from love as opposed to suffering, tends to avoid disease. Ultimately, though, you can define your own needs.
Love is all you need——for what? There isn’t enough information to make sense. Even if you need more in the physical realm, the rest of the sentence could read——- to see you through.
Human needs include love but are certainly not limited to it as @Bluefreedom pointed out. I doubt John Lennon seriously meant to be taken literally in that case.