Most middle ear infections eventually go away by them selves. Scientific evaluation is a must for treatments used for conditions that are often self-limited. Otherwise, everything from raindances to reindeer meat diets can appear to have been responsible for curing the condition - just by coincidence. Scientific evaluation means keeping track of many, many individuals treated with a particular regimen and carefully comparing the outcome of that group to a similar group treated either with another therapy or a placebo. Evaluating the need for treatment must be done holistically - taking into to consideration the whole person.
Many children have an immediate spurt in expressive language when the fluid resolves.
The treatment of self- limited conditions is a fertile ground for enterprising grifters. I suggest you stick to risking your own health - not your baby's. Better yet, stay away from health treatments altogether. I love throwing the tarot myself, but it has its place. Part of choosing a rational treatment has to do with the specific cause of the otitis media.