Catherine, Don't worry about the recurrence of symptoms; these are only at a very low level and are part of the virus extraction process; entirely manageable. Junior dispirin might be appropriate though please refer to a GP. Immunostimulant Spray will also be of benefit. The dosage for Dembarah200 is the same for all ages. As a homoeopathic preparation it is not 'approved' for use as a medicine as no western government will publish criteria against which homeopathic remedies can be tested.