What Are Side Effects Of Using Tugain Foam For Long Term?

hello,sir this amit .k.bhavani from Ahmedabad,i m 25 year old ,i m useing tugain foam 5% and dutas 0.5mg capsule one par day since from last 7 to 8 months, i just want to know that how much time still i have to use tugain foam 5%,i was talked with my doctor regarding the same,he was told me that i have to use this medicine whole life, so i want to know that it is true?and can you please tell me side effect of this medicine,waiting for your valuable reply, Thank you.