Hi there ~
If the illness is viral, you also need a lot of rest (sleeping aids
may be helpful) and plenty of hydration with water and other fluids for your illness to get better. I would assume that the medications that you are on are being taken regularly. Keeping a regular schedule in terms of meals will also help.
I hope you visit with a doctor if things continue to be the same or you continue to decline, in terms of your health overall. Take care and I wish you the best in health!