hello and welcome to HCM,
I have understood your concern regarding the hearing loss
which is bothering you.
Since you have got grommets its always a risk for infection which would have been happened in this case. What you can do is to start a course of antibiotic like amoxycillin-clavulanate
combination 625 mg twice daily after food for five days along with levocetrizine 5mg once daily after food for two weeks. Your doctor will know about these. Once the infection clears your hearing may improve.
Needless to say that if the hearing does not improve with these medications you must consult an ENT who will first perform an examination of the drum and advice an audiometry
testing based on which he may treat you further.
Meanwhile do not take head bath and do not put ear drops
Dr Sriram Nathan
ps: You can get infection even if you are very strict so do not worry