After a beard transplant, if I'm applying acne medication around my face near my beard, will that affect my beard hair growth?

It is best to see your physician regarding the treatment of acne after a beard transplant to be sure this is not an infection related to the procedure.  With regards to beard trimming after a transplant, it is generally safe to trim your beard at this point but I would speak with your physician regarding their specific recommendations for post-operative care.

Always check with your doctor on post operative care and medication use.  If you want to use acne medication on the transplanted area it is best to ask your doctor.  In addition, you need to inform your doctor which acne medication you are using. 

I generally recommend that patients wait until there is full regrowth before applying any harsh skin care products after a beard transplant.  However, what you are describing is a condition that requires your surgeon to know about so he/she can provide proper treatment.

Using acne medication will effect your transplanted hair. You need to seek advise from your doctor before starting to use these medications,

You are discussing taking acne medications for an eruption of acne after a beard transplant. I would strongly advise you to see your doctor about this decision as acne medications can ruin a hair transplant of any kind within the first 9 months after it has been done.