also i feel burning sensation near by anus and itching in inner thighs.
Try alternative medicine NAET and/or BRT, body restoration technique with a chiropractor that does applied kenisology. AK.
NAER has a DETOX protocol to clear allergies form the system. Once the DETOX protocol is completed the chiropractor will be able to help you with specific issues.
Both my husband and I have used both methods for over 10 years with EXTREMELY good results. Our immune system is improved.
In addition to allergies we have used for other issues such as rashes, viruses, bacteria, lung and cough, blood sugar, inflammation, arthritis. Thyroid, CELIAC disease. Exposure to pesticides, etc.