I would recommend the book Smart Medicine for a Healthier Child. It tells you conventional medications/treatments, plus herbs, dietary support, homeopathy, flower essences, accupressure, etc. The book is huge and is only $23.
Your little one is really young, so not many herbs or remedies are recommended. I would probably keep arnica montana on hand, and chamomilla. I would have organic chamomile flowers on hand for tea (or buy the tea bags, but the herbs are far cheaper from Mountain Rose Herbs). For the ear pain, you could have used straight extra virgin olive oil, which has germ fighting ability and is soothing.
I would also keep some essential oils on hand, like lavender, chamomile (Roman and German), dill, eucalyptus, calendula, and tea tree, all of which are safe to use if your baby is 6 months old. A great book is Valerie Ann Worwood's The Complete Book of Essential Oils and Aromatherapy. There is a whole section on babies and children, and even more oils listed that you can use on your little one.
Are you breastfeeding? Cutting out dairy is a good first step, but you should also cut sweets and fried foods. Increase your intake of vitamin C, zinc, and carotenoids.
HTH,
Kimberly