Villain is a 28/3

I wasn't sure about my flop play here. Should I be raising a 993 flop and try to get it in? Or just let him barrel his stack off?

In this hand I just decided to stick him in on the turn but I think just calling would've been better in case he wanted to vbet a worst hand or keep bluffing

PokerStars No-Limit Hold'em, $0.50 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

saw flop

Hero (MP2) ($50)
MP3 ($25)
CO ($22.25)
Button ($92.55)
SB ($50)
BB ($50.75)
UTG ($50)
UTG+1 ($53.95)
MP1 ($34.75)

Preflop: Hero is MP2 with Q, Q
2 folds, MP1 calls $0.50, Hero bets $3, 5 folds, MP1 calls $2.50

Flop: ($7.25) 9, 3, 9 (2 players)
MP1 bets $3, Hero calls $3

Turn: ($13.25) 7 (2 players)
MP1 bets $8, Hero keeps calling down?

Total pot: $29.25 | Rake: $1.40