Welcome dear! Thanks for consulting me at virtual clinic. I have carefully worked through your case, and I can realize your son s health worries. Being his physician, I assure you not to worry as I will take care all of his medical concerns. Yes if its not getting worse( as you told) and there is no serious condition associated, its safe to carry on cold sponging and 2 tablets Tylenol. Fever itself isn t a disease. Its actually a sign of some disease process for example Bacterial Infection that may be anywhere in body. He might need some antibiotics(prescription drug). So don t miss his appointment in the morning. If you need further, detailed and quick assistance related to any health issues, feel free to ask me a question directly from my profile. You can also attach Lab reports and pictures with direct question. May he get very well soon and have a wonderful time ahead. Please don t forget to give your valuable feedback and five star rating, to help me assist you in a better way. Click at I Find This Answer Helpful. Please, write a review about your experience with me.   Regards! DR. HANIF PHILADELPHIA, USA