How much Rhus Tox 6c for Chickenpox? Help Please!

[mum2twins]

My DS (part one of twins) has just started with chickenpox so I have bought everything I could find recommended on mumsnet including Rhus Tox 6c. I don't know anything about homeopathic medicine and how much to take - it doesn't give details. Anyone know? he is 3.5yrs.
Thanks

shouldnt bother - the best things we bought were Aveeno Oil (made with oatmeal, you put it in the bath) brilliant for soothing itching but a sock of porridge oats over the tap works well too, and calamine cream rather than lotion. Be prepared for the other one to get it in the next couple of weeks - sympathies, my two had it very badly and it was hideous.

thanks enid, the pharmacist gave me the sachets of Aveeno powder to put in the bath - although will work out quite expensive. Will give that a go tonight. The spots only started to appear last night so I suppose this is day one - when does the intense itching start?