Can short-term use of Rogaine have long-term effect on hair?

This is a great question. Once the side effects you are experiencing resolve with cessation of rogaine - usually by several weeks - you may also notice an increase in hair shedding as the hairs begin to cycle simultaneously into the telogen (shedding) phase of the hair cycle. Fortunately, there are no known long term adverse effects of Rogaine after stopping use on hair growth or otherwise.

No, you need to continue using Rogaine to keep your results. I suggest seeing a hair loss expert now to go over your condition and provide you information about your best treatment options. There are great non-invasive options like prp/progesterone which can help with hair regrowth and/or hair transplantation. See an expert. Best, Dr. Emer

The  effects of using Rogaine for a short-term can last six to nine months. Rogaine will take hair in the telogen ( resting phase )and put it into the anagen phase (growth). The negative effects that you are referring to are actually a sign that the Rogaine is active. Find a hair loss expert. They will work with you on treatment.PRP hair MD.com

Minoxidil should only be effective while you are using it and for a few months after. Initially, after you start applying minoxidil, you may get some shedding. This is caused by the medication causing the hair to cycle. There should be no long term effects of this medication,Dr. Robert Jones

Side effects from minoxidil usually are gone in a few weeks, but there could be real damage from any drug when side effects continue beyond a year, I would dobuit that but speak with your doctor about it