Post Covid Problems. A medical facility.

My grandmother (85years old) underwent covid treatment for 1 month where she was administered with Steroids and Insulin. Treatment is over and now she is covid negative.She has been discharged from hospital too however she is unable to walk and move the lower part of her body without any help. She is always sleeping and in oder to make her sit someone needs to hold and pull her up but walking or getting off the bed is not possible at all (though she has sense in the lower part that we confirmed by pinching her knee, ankle...etc).As per her she cannot sense when she needs to attend nature's call and hence we have put her in adult diaper (on bed not able to go to washroom). Any suggestion on what could the issue be and any possible treatment... Citing her condition, it is really difficult to take her to a medical facility. Thanks in advance.