Curing an annoying sebaceous cyst on my chest

Hello everyone,
Glad that I found this forum and it has a lot of information that I have been looking for. I had an infected sebaceous cyst on my chest removed around 5 years ago and the doctor warned me that it might return. Well, it has and while it wasn't bothering me, there is some tenderness around it which has me a little worried. I would hate to go through an operation again, the last one took nearly 2 hours!

My question is, can I use castor oil with Iodine here? Many people seem to be saying castor oil does wonders, but I have read Iodine is also a great alternative. But can both of them be used together?

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