There’s two strains of flu going on right now, the most common strain is lasting 7-10 days. The flu hits everyone differently but it has been worse this year. The lungs will typically fill with some amount of fluid causing crackly lungs and a wet cough, the alveolar sacks will also tend to be fluid filled leading to increased temperatures and decreased gas exchange. An IV is only going to help with dehydration, it won’t make the lungs better, only lots of coughing, deep breathing and an incentive spirometer will help with that. Tylenol can help with temperatures and general aches but endurance and stamina during the game tomorrow should still be a huge issue for anyone who still has the flu. Increased activity will only exacerbate symptoms.