My grandson ran a fever for four days as high as 103.7. He went to the dr and he gave him a steroid shot and oral antibiotics to take he has taken the meds for three days last night his gums were sweeping and today they are very swollen and his teeth are so sore he can't chew it hurts too bad his teeth are in excellent condition never had a problem with his gums could it be the antibiotics or the fever thank you for your help.