Each one of us has a different constitution.  We react differently to the same remedy.  Most of us are sick to some degree.  We and the sickness combined will produce different results.  Seasons will alter the prognosis of the disease differently.  The factors affecting the way a remedy will react on a person are numerous.  The method of preparing a remedy alter its nature.  All these aspects preclude standardization in dosage.  Personal experimentation is the key to success here.

How to go about it.

Select a remedy(s). 
Go to their individual pages on herbpathy.com and see which combines well with it. 
Make sure two remedies selected do not antidote each other. 
See their nature.  Make sure you do not take a 'hot' remedy in summer or a 'cold' remedy in winter.

Method of preparation.   You may take a remedy in any of the following forms.

Capsules/Pills

Wines

Tinctures

Decoction

Concoction

Infusion

Leyham

Oil

Powder with water

Powder with milk

Time of taking :

Duration of taking :

When to stop :

When to repeat

Prognosis.  How to tell if it is benefiting or it should be stopped.