I note that you had two infections, i.e., typhoid, which is a bacterial infection and malaria, which is a parasitic infection transmitted by a mosquito bite. From your details I form the impression that you have been successfully treated by your physician but you are left with some morbidity as joint pains and skin rash. Your recovery phase is prolonged because of the two infections at the same time and you should gradually improve in course of time. You should continue to eat and drink normally but if your symptoms worry you, I suggest you consult a rheumatologist and a skin specialist to exclude inflammatory arthritis.