If taken wrong then any medicine is harmful. Mostly people try to experiment with over the counter prescription or by internet research and avoid doctor's consultation to save few bucks and end up spending more.

Calcarea phos and Belladonna are good medicines but they will work only if indicated. Other remedies like Chamomilla, Podophyllum, Calcarea Carb may help more than the remedies you mentioned. Please consult a Qualified, licensed Homeopathic doctor who will select the correct remedy and heal the problem. You can call me also on (nine four four nine three four three zero four six)

Calcarea phosphorica is good but consult dr.

Yes u can

Please do not self medicate your son. Better to consult before giving any medicines.

Calc phos is the tissue salt. And its absolutely safe for teething. You can give it to your child. In homoeopathy drugs are indicted for various condition of the pt. So Belladonna is not harmful but using it without indications and understanding its action is harmful. It's always advisable to consult a homeopath for taking such medications.