Girls, hello everyone! My son is almost 7 months old, and today at 11 …

Girls, hello everyone! My son is almost 7 months old, and today at 11 am his temperature was 38.2. I gave him Befron at 12 pm, and the temperature dropped to 37.5 closer to 1:30 pm. Now it's already past six o'clock in the evening, and my son has a fever again of 38.2. What do you suggest? And what could this be? We're going to the doctor only tomorrow.