Damp coming out of wall

[dllive]

Hi

I bought a house last year. One of the external cob walls was completely sodden from a leaking chimney - all the plaster had fallen off and the cob beneath was more like mud. The chimney issues were fixed and the walls re-plastered. I had a stud wall erected too to divide the 2 rooms. See below:

You can see theres damp coming out of the cob wall and soaking into the plasterboard. Should I use a dehumidifier on it? Or it it a losing battle/make not much difference? Luckily it doesnt seem to be attracting mould.

Thanks

 

[foxhole]

Would suggest the issue was not fixed or left long enough to dry .

 

[dllive]

Yes. The wall should have been left for atleast 6 months to dry before being plastered. Unfortunately the builders didnt do this (and I didnt even think to question it as I trusted them). TBH Im surprised there isnt a load more damp showing. The cob was sodden!