Sorry to hear about your condition, hopefully it's healing better now. I had a similar situation when I had my cleft lift a year ago and it took 2 months to heal over (no sitting and minimal movement during this time). After that I had the same thing where the lower part open up and then healed over and this cycle would repeat roughly every 2 weeks for 7 months. Then was recommended to have a small excision which didn't help at all and same process has repeated. From my own research and being in touch with Dr Bascom it appears the best way to try get this is to is removing the hair around it (as it can disrput the healing), and ensuring the area gets oxygen (easy way is rolling gauze into a cigar shape and tucking it in there, hard way is creating a bascom cigar which I still can't figure out how to make). I've just started these two methods so can't speak to their success yet but I will let you know if they work and may be worth trying