Thanks for your question on Health Care Magic.
I can understand your concern.
Most common cause for
flu like illnesses is viral infection.
And viral infection can cause rashes on skin.
So for better symptomatic relief, along with
Tylenol, you need antihistamine drug.
It will reduce skin rashes and coughing too.
Since it is prescribed drug, you need to
consult doctor for it.
Drink plenty of fluids orally. Avoid oily and spicy food. Avoid hard to chew food. Do warm water gargles 5-6 times a day.
Don't worry, you will be alright.
Hope I have solved your query.
I will be happy to help you further. Wish you good health. Thanks.