Q. Do you need a prescription for medicated shampoo?

For problems such as Dandruff one need not visit a doctor to get a prescription. There ae many over the counter medicated shampoos available to deal with the dandruff problem. However if the problem is recurring this means that there is an issue with the scalp such as excessive oil or dry scalp etc. In this case it is recommended to meet a dermatologist. The doctor will identify the major source of recurrent dandruff problem and prescribe the shampoo accordingly. For lice infestation there are stronger medicated shampoos aimed at killing the lice on the scalp. A doctor visit is a must if one suffers from fungal disease on the scalp as that requires a long term therapy and application of medicine.