I have perused your following personal reply to my query in the above comments section: "From yesterday I am feeling better not much head ache and ear pain. I used plastic neti boil( attached image). As this first time after kept bottle in one nozzle I pressed bottle with and later I understood I put pressure on bottle so water also had put pressure in nose. While doing from left side I did not open mouth. But while doing from right side I opened mouth. As per my experience I understood I did some mistake that I realised after did it by watching videos and by seeing your forum. Now I am feeling ok. But chit chit sound is there in left ear. Note : After did it I feel my nose is cleared. One more thing there is cold for me only getting hot air in nose and little suffocation. It's a wonderful technique instead of medicine. Still I am using medicine."
That's great that you are feeling ok now. I would suggest you to use metallic or ceramic Neti Pot (Himalayan's) as illustrated , if possible, below instead of bottle or even plastic of at least make up, for good results:

Use saline & luke warm water in it and make flow the water from one nostril to other and vice versa. Thereafter, please make sure that you gently dry nostrils with kapalabhati pranayama or just simply repeated exhalations. I repeat that you make sure that there should not be remnant water left in the nostrils after completing the neti. You will feel presence of mini-water-droplets on the palm of your hand on forceful exhalations over it, if your nostrils have little bit of water left therein. Also, ensure that the water used is clean and sterilized to avoid infection and the breathing should continue through mouth (instead of nostrils) during the process of neti. Please go through Checklist for Beginners to Jala Neti and Dos & Donts during Jala Neti.
It would be appreciated to kindly elaborate "One more thing there is cold for me only getting hot air in nose and little suffocation." to let me understand more clearly.