2nd trimester and this annoying cough

I got this annoying cough since almost over 2 weeks now went doctors they checked me and said my chest is very clear so I don't need antibiotics but they can't give me any medication which I understand for the safety of baby but this cough is so annoying it disturbs my sleep I have to grab my lower belly as sometime it hurts to cough but holding it doesn't even help.

What are the home remedies I can have?

I'm drinking warm water and gargling with salt and drinking tea but what else can I do ???