Welcome and thanks for consulting the best portal of physicians online. I have carefully worked through your case, and I can realize your health worries. Being your physician, I assure you not to worry as I will take care all of your medical concerns.
It is due to the
allergic reaction of the body due to lung irritation caused by the chemicals in the paint.
It will take some time to go away and the lung tissue
injury will heal with time.
Medications:-
Take some OTC medications to have a symptomatic relief.
Ibuprofen
Claritin
Cough suppresant syrup.
Don't go into that restroom where you painted recently. You need to stay away for a week. Keep the restroom airy by opening the doors. It will take away any volatile chemicals in fresh paint.
Take plenty of water, fruita and vegetables. Take a protein diet and take proper rest to ensure fast recovery.
Hope I answered all of your health concerns . If you have further questions in future, feel free to contact me anytime & I will get back to you in no time. Please give a positive feedback.
Have a wonderful time ahead.
Best Regards!
DR. HANIF
USA
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https://www.healthcaremagic.com/doctors/dr-muhammad-hanif/70199