Is it ok using baby oil after 4 months of hair transplant ?

There should be no issue with baby oil itself but you should have a good reason as most people don't rub baby oil on their scalp. It is always a good idea to follow up with your doctor for a recheck if you have concerns.

It is okay to use baby oil after 4 months of hair transplant but I am concerned that it may cause more problems than offer any significant benefit. Using too much baby oil after hair transplant might result in future hair loss, dandruff, eczema, and likes. I suggest that you take care of your hair like you were doing before the surgery, use mild shampoos to get rid of flakes and odors that might inhibit proper hair growth.

It should be fine to use baby oil 4 months after hair transplantation, but it might increase the risk of dandruff. You should speak with your hair transplant surgeon about the specifics, but I am not sure that there is much benefit in using baby oil in your hair.

You don't need to use baby oil at 4 months mark after a hair transplant.  However, it is harmless and at this point you can treat your scalp as you used to before your hair transplant.

It is safe to apply baby oil to your scalp four months after your hair transplant.  I would only caution that the scalp has abundant sebaceous oil glands already and does not usually need extra oil except in rare cases of eczema and psoriasis.  In fact, dandruff/flaky scalp is believed by dermatologists to be partly caused by inflammation resulting from excess oil and yeast overgrowth.  Lack of adequate cleansing or washing with shampoo can result in excess scalp oil and consequent dandruff.  It is best to control scalp flaking with a dandruff shampoo which will control the excess oil and yeast.  

It is perfectly OK to use baby oil 4 months post transplant but most likely not the best option. If your scalp is dry the best option is to shampoo less often and use a milder shampoo. The best oil for your hair is your own natural oil.  It is important to be aware of actions such as vigorously rubbing, constantly picking and scratching a dry scalp which can effect your results..

Baby oil on the scalp dozens not help shedding it may cause some hairloss. Consult your physician before using any unusual product before your translated hair begins to grow in.

Baby oil should not be used on the scalp, it is a mineral oil from petroleum distalates. It should never be used. Patients ask me about dandruff regularly. The most common cause of dandruff is the use of shampoos that cause damage to the scalp allowing an opportunist fungal infection resulting in flaking :dandruff". The most common lathering agent in shampoos is sodium lauryl sulfate. Look at the label of your shampoo. Avoid shampoos that contain sodium lauryl sulfate, a long chain alcohol that damages the scalp. Use a sulfate free shampoo and over the course of a number of months your scalp will heal and be better able to resist a secondary fungal infection. Using a 2% salicylic acid solution available over the counter will help to mitigate dandruff flaking as your scalp heals. Problems that persist may be psoriasis or other scalp conditions that may need the help of your primary care provider or dermatologist.