Certified GKH Gardening Expert
If there is new growth around its base, those are suckers and this means the plant is stressed, likely from insect pests or disease. You can cut back the dead/dying growth to allow the new growth to continue. You can also treat the plant with neem oil to take care of any insect pests or fungus which may be affecting it. Other than that, just care for it as normal, though you may want to give it some additional water if the soil's dried out, and wait to see if its overall health improves.