<s>[INST] Hi,,, I'm using my retainer now for almost four months. This was adjusted last week and I noticed a little swolen in my gums. and now its getting bigger and sometimes it bleeds... What should i do? Its quite painful and uncomfortable. Your answer would be a great help. Thank you. [/INST] Hello, Welcome Thanks for consulting HCM,      I have gone through your query,  you are using retainers from four month,  now as you have mentioned reatainer causing discomfort, dont worry , gingival problem comes in orthodontic treatment ,      You do warm saline gargle two - three times a day, chlorhexidine mouthwash 2 times a day  Consult your orthodontist for retainer.   Hope this will help you. Wish you good health. </s>