hi palopez, your child seems to be suffering from a viral fever which usually can be accompanied by moderate to high fever, ear infections, nasal blockade , flushing of face and body, generalized weakness, decreases appetite, congestion of eyes, puffiness surrounding the eyes, running nose and so on.. usually as viral infection occurs there occurs a blockade in the connectivity between the middle ear and the pharynx a tube known as Eustachian tube which leads to blockade/ infection of the ear.. this subsides as the viral fever starts to decrease.. your doctor has advised a course of amoxicillin so as to prevent what we call a secondary bacterial infection in the child which commonly follows a viral illness and may lead to further complications.. also the viral illness is self limited i.e it gets naturally cleared from the body in matter of 5-7 days.. all the child needs now is a good supportive care.. like easily digestible nutritious food like a clear chicken soup, and a good amount of bed rest.. and child should recover in a matter of few days..